readmy again

README.md

@@ -1,4 +1,12 @@
-# map 
+# Sunset Simulator
+
+## Organization
+
+The code is separated into two parts:
+- GUI file: [app.py](app.py)
+- "header" file: [skydome.py](skydome.py)
+
+
 
 to use the gui first 
 - set up the environment
@@ -6,13 +14,19 @@ to use the gui first
 
 
 ## environment setup
-
+### Windows
 ```
 > python3 -m venv .venv
 > venv\Scripts\activate
 > pip install -r requirements.txt
 ```
 
+### Linux/Mac
+```
+> python3 -m venv .venv
+> source .venv/bin/activate
+> pip install -r requirements.txt
+```
 
 ## running the gui