Fixed Windows activation documentation

On Windows, the activation script is stored in `venv/Scripts/activate`
I hope the OS selection menu works, a test of it might be needed

docs/guides/creating-a-reproduction.md

@@ -22,6 +22,18 @@ just delete and recreate the environment. It's trivial to set up:
 
 -   Activate the environment with:
 
+
+=== ":fontawesome-brands-windows: Windows"
+
+    ``` sh
+    . venv/Scripts/activate # (1)!
+    ```
+    
+    1.  Your terminal should now print `(venv)` before the prompt, which is
+        how you know that you are inside an environment.
+        
+=== ":material-linux: Linux"
+
     ``` sh
     . venv/bin/activate # (1)!
     ```