Docs: document how to use autofix.ci (#17215)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

.github/workflows/autofix.yml

@@ -3,9 +3,6 @@ name: autofix.ci # needed to securely identify the workflow
 on:
   pull_request:
 
-permissions:
-  contents: read
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
@@ -14,5 +11,6 @@ jobs:
   fix:
     name: Run automated fix
     uses: prettier/shared-workflows/.github/workflows/automated-fix.yml@main
+    permissions: {}
     with:
       repository: prettier/prettier

docs/ci.md

@@ -0,0 +1,34 @@
+---
+id: ci
+title: Run Prettier on CI
+---
+
+## GitHub Actions
+
+To apply autofix for Prettier from GitHub Actions, do the following:
+
+1. Install the [`autofix.ci`](https://github.com/apps/autofix-ci) GitHub App.
+1. Make sure you have a **pinned** version of Prettier installed in your repository.
+1. Create `.github/workflows/prettier.yml` with following content:
+
+   ```yaml title=".github/workflows/prettier.yml"
+   name: autofix.ci
+   on:
+     pull_request:
+     push:
+   permissions: {}
+   jobs:
+     prettier:
+       runs-on: ubuntu-latest
+       steps:
+         - uses: actions/checkout@v4
+         - uses: actions/setup-node@v4
+         - run: |
+             yarn
+             yarn prettier . --write
+         - uses: autofix-ci/action@v1
+           with:
+             commit-message: "Apply Prettier format"
+   ```
+
+For more information see [autofix.ci](https://autofix.ci/) website.

website/sidebars.json

@@ -15,7 +15,8 @@
       "plugins",
       "cli",
       "api",
-      "browser"
+      "browser",
+      "ci"
     ],
     "Configuring Prettier": [
       "options",

website/versioned_docs/version-stable/ci.md

@@ -0,0 +1,34 @@
+---
+id: ci
+title: Run Prettier on CI
+---
+
+## GitHub Actions
+
+To apply autofix for Prettier from GitHub Actions, do the following:
+
+1. Install the [`autofix.ci`](https://github.com/apps/autofix-ci) GitHub App.
+1. Make sure you have a **pinned** version of Prettier installed in your repository.
+1. Create `.github/workflows/prettier.yml` with following content:
+
+   ```yaml title=".github/workflows/prettier.yml"
+   name: autofix.ci
+   on:
+     pull_request:
+     push:
+   permissions: {}
+   jobs:
+     prettier:
+       runs-on: ubuntu-latest
+       steps:
+         - uses: actions/checkout@v4
+         - uses: actions/setup-node@v4
+         - run: |
+             yarn
+             yarn prettier . --write
+         - uses: autofix-ci/action@v1
+           with:
+             commit-message: "Apply Prettier format"
+   ```
+
+For more information see [autofix.ci](https://autofix.ci/) website.

website/versioned_sidebars/version-stable-sidebars.json

@@ -15,7 +15,8 @@
       "plugins",
       "cli",
       "api",
-      "browser"
+      "browser",
+      "ci"
     ],
     "Configuring Prettier": [
       "options",