feat(README): Sync to nodejs/learn

.github/workflows/codemod_publish.yml

@@ -132,3 +132,10 @@ jobs:
 
           ✅ Codemod has been successfully published to the registry!
           EOF
+
+  refresh-learn:
+    name: Sync nodejs/learn
+    needs: validate-and-publish
+    uses: ./.github/workflows/refresh-learn.yml
+    secrets:
+      LEARN_REPO_TOKEN: ${{ secrets.LEARN_REPO_TOKEN }}

.github/workflows/refresh-learn.yml

@@ -0,0 +1,70 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
+
+name: Refresh nodejs/learn
+
+on:
+  workflow_call:
+    secrets:
+      LEARN_REPO_TOKEN:
+        required: true
+        description: >
+          Fine-grained PAT scoped to nodejs/learn with
+          Contents: write and Pull requests: write permissions.
+
+permissions:
+  contents: read
+
+jobs:
+  sync:
+    name: Sync READMEs to nodejs/learn
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@fe104658747b27e96e4f7e80cd0a94068e53901d # v2.16.1
+        with:
+          egress-policy: audit
+
+      # Check out nodejs/learn
+      - name: Checkout nodejs/learn
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          repository: nodejs/learn
+          token: ${{ secrets.LEARN_REPO_TOKEN }}
+          persist-credentials: false
+
+      # Check out this repo
+      - name: Checkout userland-migrations
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          path: source
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+        with:
+          node-version-file: source/.nvmrc
+
+      - name: Sync READMEs and update site.json
+        run: node source/scripts/sync-learn.mjs
+
+      - name: Open or update pull request on nodejs/learn
+        uses: gr2m/create-or-update-pull-request-action@b65137ca591da0b9f43bad7b24df13050ea45d1b # v1.10.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.LEARN_REPO_TOKEN }}
+        with:
+          title: "chore: sync userland-migrations codemods"
+          body: |
+            Automated sync of codemod documentation from
+            [nodejs/userland-migrations](https://github.com/nodejs/userland-migrations).
+
+            Updates `pages/userland-migrations/` and `site.json` with the
+            latest README from every published recipe.
+
+            ---
+            *This PR is opened/updated automatically on every codemod publish.*
+          branch: automated/sync-userland-migrations
+          commit-message: "chore: sync userland-migrations codemods"