Update TODO.txt

Author: Abhinav Jhanwar

TODO.txt

@@ -4,7 +4,7 @@ TODO:
 - Fix Wi-Fi tethering (Easy) => DONE
 - Custom bootanimation and/or bootlogo (Easy) => DONE
 - Customize autogenerated information in Build.prop. Check system.prop (Mid/Hard)
-- Fix Apps in SD (Hard)
+- Fix Apps in SD (Hard) => DONE
 -- V0 BUILD!!!
 
 - Fix A2DP (Hard)