update readme

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 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 .idea/
 
+.DS_Store

diff --git a/readme.md b/readme.md
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 ![image of simulation](simulation.png)
 
+## Description
+- Accurately simulates the electric field strength and visualizes real time.
+
 ## Dependencies
 (You might have to uninstall pygame if it is already installed)
 
 ```pip install pygame-ce library```
 
 ## How to Run
-run main.py
+- Run main.py
 
 ## Controls
-drag particles around to move them.
+- Drag particles around to move them.
 
 ## Extra
-add more particles to particles list in main.py for more fun.
+- Add more particles to particles list in main.py for more fun.