Update README.md

Author: kaonkaon

README.md

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-# ztwo
-A game inspired by GD Wave gamemode.
+# Z2
+A game inspired by Geometry Dash Wave gamemode.
+This game made in **2 days**. 
+
+**Used:**
+- GameMaker Studio 1.4.9999 by Yoyo Games
+- [GayMaker 1.7.7 by LiEnby](https://github.com/LiEnby/GayMaker)
+- [freesound.org](https://freesound.org/) for sound effects
+- music credits are in game...
+
+**Todo list:**
+
+ - [ ] fix Yandere ahh code
+ - [ ] add ability to submit score to internet
+ - [ ] add more enemies 
+ - [ ] make it more playable
+ - [ ] remove Herobrine