* Add GNU Emacs refcard to more/free-programming-cheatsheets.md file under ide/editors category
* Add alphabetical order and PDF indication for the adding emacs refcard
* Added PDF indication
* Add HackThisSite in CTF and corrected address spelling
* Removed slash from the end of the URL
* Add resources and categories to Hindi courses
* Added spaces and alphabetical order
* Fixed alphabetical order
* Fixed broken TOC anchors