Added Elisp Programming guide

books/free-programming-books-langs.md

@@ -300,7 +300,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Introduction to Arduino : A piece of cake!](http://www.introtoarduino.com) - Alan G. Smith
 * [Learn Arduino](https://riptutorial.com/Download/arduino.pdf) - Compiled from StackOverflow documentation (PDF)
 * [Open softwear - Fashionable prototyping and wearable computing using the Arduino](https://softwear.cc/book/files/Open_Softwear-beta090712.pdf) - Tony Olsson, David Gaetano, Jonas Odhner, Samson Wiklund (PDF)
-
+https://camo.githubusercontent.com/9118
 
 ### ASP.NET
 
@@ -1546,6 +1546,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 * [An Introduction to Programming in Emacs Lisp](https://www.gnu.org/software/emacs/manual/eintr.html)
 * [GNU Emacs Lisp Reference Manual](http://www.gnu.org/software/emacs/manual/elisp.html)
+* [Elisp Programming](https://caiorss.github.io/Emacs-Elisp-Programming/Elisp_Programming.html)
 
 
 #### PicoLisp