docs: add contribution section to README for community involvement

Author: NotReeceHarris

README.md

@@ -7,3 +7,7 @@ Are you fed up with trillion-dollar companies exploiting your data? Forcing you
 Join the movement to make companies more like Clippy. Set your profile picture to a Clippy, make your voice heard.
 
 Below is a video that explains the Be Like Clippy movement. It’s a call to action for developers, companies, and users alike to embrace a more open, transparent, and user-friendly approach to technology.
+
+## Contribution
+
+Anyone is free to contribute information, profile pictures, thoughts, etc.