Update README.md

Author: zegl

README.md

@@ -2,6 +2,9 @@
 
 **AI-POWERED CODE REVIEW**
 
+![github_bg](https://user-images.githubusercontent.com/47952/170700847-bb0cac65-f269-4758-955a-632c48f47290.png)
+
+
 **Save time and $$$, use Codeball to perform an early review of all your code.**
 
 * [Online Demo](https://codeball.ai/)
@@ -11,6 +14,7 @@
 1. Create a new file called `.github/workflows/codeball.yml` with the following content:
 
 ```yaml
+name: Codeball
 on: [pull_request]
 
 jobs: