Updated Working on GNU Linux (markdown)

Working-on-GNU-Linux.md

@@ -62,7 +62,6 @@ You can compile three different types of raylib library:
 
 * The static library (default method)
 * The dynamic shared library
-* The web library
 
 If you are unsure about which one you should use, pick the static library.
 
@@ -72,7 +71,6 @@ Download the raylib repository from [Github](https://github.com/raysan5/raylib),
     cd raylib/src/
     make PLATFORM=PLATFORM_DESKTOP # To make the static version.
     make PLATFORM=PLATFORM_DESKTOP RAYLIB_LIBTYPE=SHARED # To make the dynamic shared version.
-    make PLATFORM=PLATFORM_WEB # To make web version.
 
 **Warning:** if you want to compile a different type of library (static, ...), you must type `make clean` before the compiling.