fixes #961

free-programming-books.md

@@ -823,7 +823,8 @@
 * [Conversational Git](http://blog.anvard.org/conversational-git/)
 * [Git From The Bottom Up](http://ftp.newartisans.com/pub/git.from.bottom.up.pdf) (PDF)
 * [Git Immersion](http://gitimmersion.com)
-* [Git internals](https://github.com/pluralsight/git-internals-pdf/raw/master/drafts/peepcode-git.pdf) (PDF)
+* [Git internals](https://github.com/pluralsight/git-internals-pdf/raw/master/drafts/peepcode-git.pdf) - Scott Chacon (PDF)
+* [GitHub Cheat Sheet](https://github.com/tiimgreen/github-cheat-sheet) - Tim Green (Markdown)
 * [Git In The Trenches](http://cbx33.github.io/gitt/index.html)
 * [Git Magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/)
 * [Git Pocket Guide](http://chimera.labs.oreilly.com/books/1230000000561/index.html) - Richard E. Silverman
@@ -871,14 +872,13 @@
 * [Haskell web Programming](http://yannesposito.com/Scratch/fr/blog/Yesod-tutorial-for-newbies/) (Yesod tutorial)
 * [Learn Haskell Fast and Hard](http://yannesposito.com/Scratch/en/blog/Haskell-the-Hard-Way)
 * [Learn You a Haskell for Great Good](http://learnyouahaskell.com/) - Miran Lipovaca
-* [Natural Language Processing for the Working Programmer](http://nlpwp.org/book/)
-* [Parallel and Concurrent Programming in Haskell](http://chimera.labs.oreilly.com/books/1230000000929)
+* [Natural Language Processing for the Working Programmer](http://nlpwp.org/book/index.xhtml)
+* [Parallel and Concurrent Programming in Haskell](http://chimera.labs.oreilly.com/books/1230000000929/index.html) -  Simon Marlow
 * [Real World Haskell](http://book.realworldhaskell.org/)
 * [Speeding Through Haskell](http://www.sthaskell.com/)
 * [The Haskell Road to Logic, Math and Programming](http://fldit-www.cs.uni-dortmund.de/~peter/PS07/HR.pdf) (PDF)
 * [Wikibook Haskell](http://en.wikibooks.org/wiki/Haskell)
 * [Yet Another Haskell Tutorial](http://hal3.name/docs/daume02yaht.pdf) (PDF)
-* [Parallel and Concurrent Programming in Haskell](http://chimera.labs.oreilly.com/books/1230000000929/index.html) -  Simon Marlow
 
 
 ###HTML / CSS
@@ -1147,10 +1147,10 @@ See also [TeX](#tex)
 * [Experiments with MATLAB](http://www.mathworks.com/moler/exm/index.html)
 * [Freshman Engineering Problem Solving with MATLAB](http://cnx.org/featureContent/mfiles)
 * [Interactive Tutorials for MATLAB, Simulink, Signal Processing, Controls, and Computational Mathematics](http://www.mathworks.com/tutorials)
+* [MATLAB - A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 1](http://www.intechopen.com/books/matlab-a-fundamental-tool-for-scientific-computing-and-engineering-applications-volume-1)
+* [MATLAB - A Ubiquitous Tool for the Practical Engineer](http://www.intechopen.com/books/matlab-a-ubiquitous-tool-for-the-practical-engineer)
 * [MATLAB Programming](http://en.wikibooks.org/wiki/MATLAB_Programming)
 * [MATLAB for Engineers: Applications in Control, Electrical Engineering, IT and Robotics](http://www.intechopen.com/books/matlab-for-engineers-applications-in-control-electrical-engineering-it-and-robotics)
-* [MATLAB - A Ubiquitous Tool for the Practical Engineer](http://www.intechopen.com/books/matlab-a-ubiquitous-tool-for-the-practical-engineer)
-* [MATLAB - A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 1](http://www.intechopen.com/books/matlab-a-fundamental-tool-for-scientific-computing-and-engineering-applications-volume-1)
 * [Numerical Computing with MATLAB](http://www.mathworks.com/moler/index_ncm.html)
 * [Physical Modeling in MATLAB](http://greenteapress.com/matlab/index.html) - Alan B. Downey
 
@@ -1290,30 +1290,29 @@ See also [TeX](#tex)
 
 
 ###PHP
-* [PHP Essentials](http://www.techotopia.com/index.php/PHP_Essentials)
-* [PHP: The Right Way](http://www.phptherightway.com/)
-* [Practical PHP Programming](http://www.tuxradar.com/practicalphp) (wiki containing O'Reilly's *PHP In a Nutshell*)
-* [Symfony2](http://symfony.com/doc/current/book/index.html)
-* [Zend Framework: Survive the Deep End](http://www.survivethedeepend.com/)
-* Laravel Framework
-    * [Laravel 4 Official Documentation. Synced Daily](https://leanpub.com/l4)
-    * [Official Documentation (Offline Version)](https://leanpub.com/l4-offline-doc)
+* CakePHP Framework
+    * [CakePHP Cookbook 2.x](http://book.cakephp.org/2.0/_downloads/en/CakePHPCookbook.pdf)
 * Drupal Framework
     * Drupal 7
         * [The Tiny Book of Rules](https://drupal.org/files/tiny-book-of-rules.pdf) (PDF)
         * [Master Drupal in 7 hours](http://dl.dropboxusercontent.com/u/54624702/Master%20Drupal%20in%207%20hours_v1.1.pdf) (PDF)
     * Drupal 8
-* CakePHP Framework
-    * [CakePHP Cookbook 2.x](http://book.cakephp.org/2.0/_downloads/en/CakePHPCookbook.pdf)
-* [PHP Internals Book](http://www.phpinternalsbook.com/)
+* Laravel Framework
+    * [Laravel 4 Official Documentation. Synced Daily](https://leanpub.com/l4)
+    * [Official Documentation (Offline Version)](https://leanpub.com/l4-offline-doc)
+* [PHP 5 Power Programming](http://www.informit.com/content/images/013147149X/downloads/013147149X_book.pdf)
 * [PHP Best Practices](https://phpbestpractices.org/)
+* [PHP Cookbook](http://commons.oreilly.com/wiki/index.php/PHP_Cookbook)
+* [PHP Essentials](http://www.techotopia.com/index.php/PHP_Essentials)
+* [PHP Internals Book](http://www.phpinternalsbook.com/)
 * [PHP Programming](http://en.wikibooks.org/wiki/PHP_Programming)
+* [PHP Security Guide](http://phpsec.org/projects/guide/)
+* [PHP: The Right Way](http://www.phptherightway.com/)
 * [PHP with Guru99](http://www.smashwords.com/books/view/324888)
+* [Practical PHP Programming](http://www.tuxradar.com/practicalphp) (wiki containing O'Reilly's *PHP In a Nutshell*)
 * [Practical PHP Testing](http://www.giorgiosironi.com/2009/12/practical-php-testing-is-here.html)
-* [Practical PHP Programming](http://www.tuxradar.com/practicalphp)
-* [PHP 5 Power Programming](http://www.informit.com/content/images/013147149X/downloads/013147149X_book.pdf)
-* [PHP Security Guide](http://phpsec.org/projects/guide/)
-* [PHP Cookbook](http://commons.oreilly.com/wiki/index.php/PHP_Cookbook)
+* [Symfony2](http://symfony.com/doc/current/book/index.html)
+* [Zend Framework: Survive the Deep End](http://www.survivethedeepend.com/)
 
 
 ###PicoLisp
@@ -1608,22 +1607,22 @@ See also [TeX](#tex)
 * [Defensive Database Programming](http://download.red-gate.com/ebooks/SQL/defensive-database-programming.pdf) (PDF) *(RedGate, By Alex Kuznetsov)*
 * [How to Become an Exceptional DBA](http://www.red-gate.com/community/books/exceptional-dba-book) *(RedGate, By Brad McGehee)*
 * [Inside the SQL Server Query Optimizer](http://www.red-gate.com/products/sql-development/sql-prompt/entrypage/sql-query-optimizer-ebook3) *(RedGate, By Benjamin Nevarez)*
-* [Introducing Microsoft SQL Server 2008 R2](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx)
-* [Introducing Microsoft SQL Server 2012](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx)
 * [Introducing Microsoft SQL Server 2014](http://blogs.msdn.com/b/microsoft_press/archive/2014/04/02/free-ebook-introducing-microsoft-sql-server-2014.aspx)
+* [Introducing Microsoft SQL Server 2008 R2](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#IntroducingMicrosoftSQLServer2008R2)
+* [Introducing Microsoft SQL Server 2012](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#IntroducingMicrosoftSQLServer2012)
 * [Mastering SQL Server Profiler](http://www.red-gate.com/community/books/mastering-sql-server-profiler.htm) *(RedGate, By Brad McGehee)*
 * [Performance Tuning with SQL Server Dynamic Management Views](http://www.red-gate.com/community/books/dynamic-management-views.htm) *(RedGate, By Tim Ford and Louis Davidson)*
 * [Protecting SQL Server Data](http://www.red-gate.com/community/books/protecting-data.htm) *(RedGate, By John Magnabosco)*
-* [SQL Server 2012 Tutorials: Reporting Services](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx)
-* [SQL Server Backup and Restore](http://www.red-gate.com/community/books/sql-server-backup-and-restore.htm) *(RedGate, By Shawn McGehee)*
-* [SQL Server Concurrency: Locking, Blocking and Row Versioning](http://www.red-gate.com/community/books/sql-server-concurrency.htm) *(RedGate, By Kalen Delaney)*
+* [SQL Server 2012 Tutorials: Reporting Services](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#SQLServer2012Tutorials:ReportingServices)
 * [SQL Server Execution Plans](http://download.red-gate.com/ebooks/SQL/sql-server-execution-plans.pdf) (PDF) *(RedGate, By Grant Fritchey)*
 * [SQL Server Execution Plans, Second Edition](http://download.red-gate.com/ebooks/SQL/eBOOK_SQLServerExecutionPlans_2Ed_G_Fritchey.pdf) (PDF) *(RedGate, By Grant Fritchey)*
+* [SQL Server Tacklebox](http://www.red-gate.com/community/books/sql-server-tacklebox) *(RedGate, By Rodney Landrum)*
+* [SQL Server Transaction Log Management](http://www.red-gate.com/community/books/sql-server-transaction-log-management) *(RedGate, By Tony Davis and Gail Shaw)*
+* [SQL Server Concurrency: Locking, Blocking and Row Versioning](http://www.red-gate.com/community/books/sql-server-concurrency.htm) *(RedGate, By Kalen Delaney)*
+* [SQL Server Backup and Restore](http://www.red-gate.com/community/books/sql-server-backup-and-restore.htm) *(RedGate, By Shawn McGehee)*
 * [SQL Server Hardware](http://www.red-gate.com/community/books/sql-server-hardware) *(RedGate, By Glenn Berry)*
 * [SQL Server Statistics](http://www.red-gate.com/community/books/sql-server-statistics.htm) *(RedGate, By Holger Schmeling)*
 * [SQL Server Stumpers Vol.5](http://www.red-gate.com/community/books/sql-server-stumpers-v5.htm) *(RedGate, By SQLServerCentral Authors)*
-* [SQL Server Tacklebox](http://www.red-gate.com/community/books/sql-server-tacklebox) *(RedGate, By Rodney Landrum)*
-* [SQL Server Transaction Log Management](http://www.red-gate.com/community/books/sql-server-transaction-log-management) *(RedGate, By Tony Davis and Gail Shaw)*
 * [The Art of SQL Server FILESTREAM](http://www.red-gate.com/community/books/art-of-filestream.htm) *(RedGate, By Jacob Sebastian and Sven Aelterman)*
 * [Troubleshooting SQL Server: A Guide for the Accidental DBA](http://www.red-gate.com/community/books/accidental-dba) *(RedGate, By Jonathan Kehayias and Ted Krueger)*