docs: add use_github_token to example (#9120)

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: rekram1-node <[email protected]>

github/README.md

@@ -91,8 +91,10 @@ This will walk you through installing the GitHub app, creating the workflow, and
            uses: anomalyco/opencode/github@latest
            env:
              ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+             GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
            with:
              model: anthropic/claude-sonnet-4-20250514
+             use_github_token: true
    ```
 
 3. Store the API keys in secrets. In your organization or project **settings**, expand **Secrets and variables** on the left and select **Actions**. Add the required API keys.

packages/web/src/content/docs/github.mdx

@@ -180,8 +180,10 @@ jobs:
       - uses: anomalyco/opencode/github@latest
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           model: anthropic/claude-sonnet-4-20250514
+          use_github_token: true
           prompt: |
             Review this pull request:
             - Check for code quality issues