feat(docs): Add repo stats badges (#6697)

* add `forks count` badges

* Add `stargazers counter` badge

* Add `repo size` badge

pointing to main branch download

* add `sponsors count` badge

- link points to sponsorized profile page
- render version is placed at new line.

* Add `open issues counter` badges

- With social balloon style
- link points to its filter: open & "help wanted"
- in a new line

* Add pull request count badges

- by filter: open, merged, "help wanted"
- using social balloon style
- linked with its own query filter
- in a new line

* Add watchers count badge

* Add website status badge

- link points to the github.io version of the repo

* Add `contributions count` badge

* Use nonbreak spaces to separate badges

* Add `contribution covenant 1.3` badge

* Shorten longer `"Help Wanted" Pull Request` badge text

* Add `good first issues` count badge

- It links to related issue search query

* format clean cluttered

- flat style for all badges
- fix some target urls (CoC, contribs)
- organize url parameters
- capitalize labels
- move contrib/sponsors nest to forks/stars...
- group by paragraph instead of br

* format: less gap flow

* change logo for website badge to `www`

a PR submit into @badges/shields project is pending to be rendered

* Update repo stats counters + fix typos

Co-authored-by: CleanMachine1 <78213164+CleanMachine1@users.noreply.github.com>

* transfer each badge to its section. now seems less dense

* Fix markdownlint issues

- MD041/first-line-heading/first-line-h1: First line in a file should be a top-level heading
- MD009/no-trailing-spaces: Trailing spaces [Expected: 0 or 4; Actual: 2]

* move website status badge near to its paragraph

* transfer CoC badge near to its paragraph/link

* reword website badge

* Reword issues/PRs badge preface

Co-authored-by: CleanMachine1 <78213164+CleanMachine1@users.noreply.github.com>

README.md

@@ -1,29 +1,52 @@
-This page is available as an easy-to-read website at [https://ebookfoundation.github.io/](https://ebookfoundation.github.io/free-programming-books/).
-
-
 # List of Free Learning Resources In Many Languages
 
 <div align="center" markdown="1">
 
-[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
-[![License: CC BY 4.0](https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg)](https://creativecommons.org/licenses/by/4.0/)
+[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)&#160;
+[![License: CC BY 4.0](https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg)](https://creativecommons.org/licenses/by/4.0/)&#160;
+<!-- [![Hacktoberfest 2021 stats](https://img.shields.io/github/hacktoberfest/2021/EbookFoundation/free-programming-books?label=Hacktoberfest+2021)](https://github.com/EbookFoundation/free-programming-books/pulls?q=is%3Apr+is%3Amerged+created%3A2021-10-01..2021-10-31) -->
 
 </div>
 
+This page is available as an easy-to-read website at [![https://ebookfoundation.github.io/free-programming-books/](https://img.shields.io/website?style=flat&logo=www&logoColor=whitesmoke&label=https%3A%2F%2Febookfoundation.github.io&down_color=red&down_message=down&up_color=green&up_message=up&url=https%3A%2F%2Febookfoundation.github.io%2Ffree-programming-books%2F)](https://ebookfoundation.github.io/free-programming-books/)
+
 
 ## Intro
 
 This list was originally a clone of [StackOverflow - List of Freely Available Programming Books](https://web.archive.org/web/20140606191453/http://stackoverflow.com/questions/194812/list-of-freely-available-programming-books/392926) with contributions from Karan Bhangui and George Stocker.
 
-The list was moved to GitHub by Victor Felder for collaborative updating and maintenance. It has grown to become one of [GitHub's most popular repositories](https://octoverse.github.com/), with 221,000+ stars, 6,900+ commits, 1,900+ contributors, and 47,100+ forks.
+The list was moved to GitHub by Victor Felder for collaborative updating and maintenance. It has grown to become one of [GitHub's most popular repositories](https://octoverse.github.com/), with 226,000+ stars, about 9,600 watchers, more than 7,000 commits, 1,900+ contributors, and 47,700+ forks.
+
+<div align="center" markdown="1">
+
+[![GitHub repo forks](https://img.shields.io/github/forks/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=whitesmoke&label=Forks)](https://github.com/EbookFoundation/free-programming-books/network)&#160;
+[![GitHub repo stars](https://img.shields.io/github/stars/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=whitesmoke&label=Stars)](https://github.com/EbookFoundation/free-programming-books/stargazers)&#160;
+[![GitHub repo contributors](https://img.shields.io/github/contributors-anon/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=whitesmoke&label=Contributors)](https://github.com/EbookFoundation/free-programming-books/graphs/contributors)    
+[![GitHub org sponsors](https://img.shields.io/github/sponsors/EbookFoundation?style=flat&logo=github&logoColor=whitesmoke&label=Sponsors)](https://github.com/sponsors/EbookFoundation)&#160;
+[![GitHub repo watchers](https://img.shields.io/github/watchers/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=whitesmoke&label=Watchers)](https://github.com/EbookFoundation/free-programming-books/watchers)&#160;
+[![GitHub repo size](https://img.shields.io/github/repo-size/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=whitesmoke&label=Repo%20Size)](https://github.com/EbookFoundation/free-programming-books/archive/refs/heads/main.zip)
+
+</div>
 
 The [Free Ebook Foundation](https://ebookfoundation.org) now administers the repo, a not-for-profit organization devoted to promoting the creation, distribution, archiving, and sustainability of free ebooks. [Donations](https://ebookfoundation.org/contributions.html) to the Free Ebook Foundation are tax-deductible in the US.
 
 
 ## How To Contribute
 
-Please read [CONTRIBUTING](docs/CONTRIBUTING.md). If you're new to GitHub, [welcome](docs/HOWTO.md)! Remember to abide by our [Code of Conduct](docs/CODE_OF_CONDUCT.md) too. ([translations](docs/README.md#translations) also available)
+Please read [CONTRIBUTING](docs/CONTRIBUTING.md). If you're new to GitHub, [welcome](docs/HOWTO.md)! Remember to abide by our adapted from ![Contributor Covenant 1.3](https://img.shields.io/badge/Contributor%20Covenant-1.3-4baaaa.svg) [Code of Conduct](docs/CODE_OF_CONDUCT.md) too ([translations](#translations) also available).
+
+Click on these badges to see how you might be able to help:
+
+<div align="center" markdown="1">
+
+[![GitHub repo Issues](https://img.shields.io/github/issues/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=red&label=Issues)](https://github.com/EbookFoundation/free-programming-books/issues)&#160;
+[![GitHub repo Good Issues for newbies](https://img.shields.io/github/issues/EbookFoundation/free-programming-books/good%20first%20issue?style=flat&logo=github&logoColor=green&label=Good%20First%20issues)](https://github.com/EbookFoundation/free-programming-books/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)&#160;
+[![GitHub Help Wanted issues](https://img.shields.io/github/issues/EbookFoundation/free-programming-books/help%20wanted?style=flat&logo=github&logoColor=b545d1&label=%22Help%20Wanted%22%20issues)](https://github.com/EbookFoundation/free-programming-books/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22)    
+[![GitHub repo PRs](https://img.shields.io/github/issues-pr/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=orange&label=PRs)](https://github.com/EbookFoundation/free-programming-books/pulls)&#160;
+[![GitHub repo Merged PRs](https://img.shields.io/github/issues-search/EbookFoundation/free-programming-books?style=flat&logo=github&logoColor=green&label=Merged%20PRs&query=is%3Amerged)](https://github.com/EbookFoundation/free-programming-books/pulls?q=is%3Apr+is%3Amerged)&#160;
+[![GitHub Help Wanted PRs](https://img.shields.io/github/issues-pr/EbookFoundation/free-programming-books/help%20wanted?style=flat&logo=github&logoColor=b545d1&label=%22Help%20Wanted%22%20PRs)](https://github.com/EbookFoundation/free-programming-books/pulls?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22)
 
+</div>
 
 ## How to Share