Update README.md

Author: Raven

README.md

@@ -10,9 +10,14 @@ The story behind
 Well, I lost my scientific calculator and our Discrete Math instructor allows us to
 use our phones to calculate things or do some operations.
 
-It's an ache in the head when I do it, so I decided to make a mobile app powered by Java J2ME
+It's a headache everytime I do it, so I decided to make a mobile app powered by Java J2ME
 that'll do all the common calculations for me. This will make it easy for me to solve problems
 in the future :D
 
+For those who has Discrete Math as one of their subjects, feel free to use the app or modify the source code.
+I'll be updating it from time to time if I find another common calculations.
 
-(Samoka ani uie, gaka geek najud keu ko.. HAHA xD)
+(Samoka ani uie, gaka geek najud keu ko.. HAHA xD)
+
+Screenshots
+-----------