Add example picture

Author: nborrmann

README.md

@@ -4,6 +4,10 @@ Poetry's lockfiles are very verbose and hard to make sense of. This makes it har
 changed in a pull request. This Github Action aims to solve this problem by posting a readable summary of all changes
 to your pull requests.
 
+## Example
+
+<img width="916" alt="image" src="https://user-images.githubusercontent.com/1723176/224580589-bd5e7a5f-e39f-40d3-91a2-b4bd02284100.png">
+
 ## Usage
 
 Simply add the following step to your Github Action: