Revert removal of RTD link

Author: m-aciek

.github/workflows/documentation-links.yml

@@ -0,0 +1,29 @@
+name: Dashboard PR preview
+# Automatically edits a pull request's descriptions with a link
+# to the GitHub pages PR preview.
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - reopened
+
+permissions:
+  pull-requests: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  documentation-links:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: chabroA/[email protected]
+        with:
+          auth: ${{ secrets.GITHUB_TOKEN }}
+          repo: ${{ github.event.repository.name }}
+          owner: ${{ github.repository_owner }}
+          pr: ${{ github.event.number }}
+          url: "https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}/${{ github.ref_name }}"
+          message: "📊 Dashboard preview:"