Add notice about `minshell.html` as it is not previously mentioned

Working-for-Web-(HTML5).md

@@ -188,6 +188,8 @@ raylib examples [`Makefile`](https://github.com/raysan5/raylib/blob/master/examp
 
 To compile raylib game directly from the command line, those are the commands to run:
 
+> NOTE: in `/raylib/src/` there is a file called `minshell.html` which is the recommended shell file for Raylib applications. So you may pass `--shell-file $HOME/raylib/src/minshell.html` to `emcc` if you had Raylib in your home directory. 
+
 * Without `ASYNCIFY`
 ```
 emcc -o game.html game.c -Os -Wall ./path-to/libraylib.a -I. -Ipath-to-raylib-h -L. -Lpath-to-libraylib-a -s USE_GLFW=3 --shell-file path-to/shell.html -DPLATFORM_WEB