Added new resources (#4072)

free-courses-en.md

@@ -172,6 +172,7 @@
 
 * [Convolutional Neural Networks for Visual Recognition](http://cs231n.github.io)
 * [Deep Learning for Natural Language Processing](http://cs224d.stanford.edu)
+* [Intro to Deep Learning](https://www.kaggle.com/learn/intro-to-deep-learning) - Ryan Holbrook
 * [MIT 6.S094: Deep Learning for Self-Driving Cars](https://selfdrivingcars.mit.edu)
 * [Practical Deep Learning For Coders taught](http://www.fast.ai) - Jeremy Howard
 * [Practical Deep Learning for Coders, v3 (using fastai library)](https://course.fast.ai)

free-programming-books.md

@@ -2781,6 +2781,7 @@ Kerridge (PDF) (email address *requested*, not required)
 ### Visual Basic
 
 * [Visual Basic Essentials](http://www.techotopia.com/index.php/Visual_Basic_Essentials)
+* [Visual Basic Official Docs](https://docs.microsoft.com/en-us/dotnet/visual-basic)
 
 
 ### Visual Prolog