use octokit

Author: Amelia Wattenbeger

README.md

@@ -13,5 +13,6 @@ A path (relative to the root of your repo) to where you would like the diagram t
 ```
 uses: githubocto/[email protected]
   with:
+    github_token: ${{ secrets.GITHUB_TOKEN }}
     output_file: 'images/diagram.svg'
 ```

action.yml

@@ -10,4 +10,4 @@ runs:
   main: "index.js"
 branding:
   color: "purple"
-  icon: "download-cloud"
+  icon: "target"