Update README.md

Author: AaronBrennan1

README.md

@@ -16,7 +16,13 @@ To understand GitHub actions you need to look for the github workflow folder whe
 **What does main.yml do?**
 Here is an explanation of each section of the .yml file. Pictures of the sections are added and an explanation is given beneath the picture.
 
-![image](https://github.com/opencobra/cobratoolbox/assets/68754265/572aa402-0c06-4eb8-b63e-b9695a722d4e)
+'''
+on:
+  push:
+    branches: [ master ]
+    paths:
+    - '**.mlx'
+'''
 
 
 This section of code basically means it will only run when a push is made to the master branch and one of the file types is a .mlx file. If not .mlx files are pushed, we don’t continue.