readme:

README.md

@@ -14,6 +14,7 @@ This Blender extension allows you to generate Blender Python code by providing a
 2. Open Blender, go to `Edit > Preferences > Add-ons > Install`
 3. Select the downloaded ZIP file and click `Install Add-on`
 4. Enable the add-on by checking the checkbox next to `GPT-4 Blender Assistant`
+5. Paste your OpenAI API key in the Addon preferences menu.
 
 ## Usage