Update README.md

Author: harshdoesdev

README.md

@@ -10,6 +10,22 @@
 
 bottlecap - Lightweight JavaScript Game Engine For Making Cross-Platform HyperCasual Games
 
+#### Warning: its currently under developement and in its very early stages. things may change radically as more feature gets added
+
+### Features
+
+1) Image/Sound Preloader
+
+2) Spritesheet Animations
+
+3) Collision Detection ( Rect 2 Rect, Circle 2 Circle, Point To Circle, Point To Rectangle )
+
+4) Utility + Tiny Math Library ( randomInt, random floats, shuffle array, etc. )
+
+5) Device info ( isTouchscreen check ) 
+
+6) Dom Manipulation ( select element(s), on/off event listeners, get/set attributes, dom ready check )
+
 ### Games made with bottlecap:-
 
 1) [Play or Die](https://rwbeast.itch.io/play-or-die)