Update action.yaml

Author: DenisPalnitsky

action.yaml

@@ -1,7 +1,7 @@
 name: 'C4(DSL) render to Github markdown'
 description: 'Render C4 diagram to Github markdown'
 branding:
-  icon: 'git-commit'  
+  icon: 'codesandbox'  
   color: 'orange'
 inputs:
   filename: 
@@ -79,4 +79,4 @@ runs:
             git config --global user.name $GITHUB_USER_EMAIL
             git add .
             git commit -m"Diagram files [ci skip]"
-            git push
+            git push