Update CI.yml

Author: mdabir1203

.github/workflows/CI.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
     branches:
-      - main
+      - Main
   pull_request:
     branches:
       - main
@@ -58,4 +58,4 @@ jobs:
         run: |
           cargo build --verbose
           cargo test --verbose
-    
+