some readme update

Author: tibbi

README.md

@@ -3,7 +3,7 @@
 
 A canvas you can draw on with different colors.
 
-Want to draw something but you have no paper? This app will suit you perfectly. Just pick a color and draw. You can either save the drawing, or share it directly through email or a social network.
+Want to draw something but you have no paper? This app will suit you perfectly. Just pick a color and draw. You can either save the drawing or share it directly through email or social networks.
 
 <img alt="App image" src="screenshots/app.png" width="250">
 <img alt="App image" src="screenshots/app_2.png" width="250">