Fix documentation links (#217)

packages/github/README.md

@@ -14,7 +14,7 @@ async function run() {
     // This should be a token with access to your repository scoped in as a secret.
     // The YML workflow will need to set myToken with the GitHub Secret Token
     // myToken: ${{ secrets.GITHUB_TOKEN }}
-    // https://help.github.com/en/articles/virtual-environments-for-github-actions#github_token-secret
+    // https://help.github.com/en/actions/automating-your-workflow-with-github-actions/authenticating-with-the-github_token#about-the-github_token-secret
     const myToken = core.getInput('myToken');
 
     const octokit = new github.GitHub(myToken);