Cleaning code

tools/shader_watcher.sh

@@ -12,7 +12,8 @@
 #    \_/\_/_/   \_\_| \____|_| |_|_____|_| \_\
 #                                             
 # This program require xdotool to communicate
-# with the window.
+# with the window. It require entr (http://eradman.com/entrproject/)
+# if you use the refresh on edit feature. 
 
 wai=$(dirname $(readlink -f "$0")) # Current script directory
 
@@ -33,6 +34,7 @@ usage() {
 
 if [ $# -eq 2 ] && [ $1 == "--every" ]
 then
+    ##### Periodically refresh shader
     shift
     time=$1
     while [ true ]
@@ -41,7 +43,7 @@ then
         refresh
     done
 else
-
+    ##### Refresh on edit
     while [ true ]
     do
     ls $wai/../resources/shaders/*.glsl | entr -pd -s 'kill $PPID'