Update preview_metadata.yml

re-enabled hub preview

Author: C-Achard

.github/workflows/preview_metadata.yml

@@ -1,21 +1,21 @@
-#name: napari hub Preview Page # we use this name to find your preview page artifact, so don't change it!
-## For more info on this action, see https://github.com/chanzuckerberg/napari-hub-preview-action/blob/main/action.yml
-#
-#on:
-#  pull_request:
-#    branches:
-#      - '**'
-#
-#jobs:
-#  preview-page:
-#    name: Preview Page Deploy
-#    runs-on: ubuntu-latest
-#
-#    steps:
-#      - name: Checkout repo
-#        uses: actions/checkout@v2
-#
-#      - name: napari hub Preview Page Builder
-#        uses: chanzuckerberg/[email protected]
-#        with:
-#          hub-ref: main
+name: napari hub Preview Page # we use this name to find your preview page artifact, so don't change it!
+# For more info on this action, see https://github.com/chanzuckerberg/napari-hub-preview-action/blob/main/action.yml
+
+on:
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  preview-page:
+    name: Preview Page Deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: napari hub Preview Page Builder
+        uses: chanzuckerberg/[email protected]
+        with:
+          hub-ref: main