Add a link to preview in the PR body for automatic updates.

fredrikekre · web-flow · commit 2dd2cfb2481a · 2022-03-08T14:59:57.000+01:00
diff --git a/.github/workflows/pkg-update.yml b/.github/workflows/pkg-update.yml
@@ -34,6 +34,7 @@ jobs:
             ```
             ${{ env.PKG_DIFF }}
             ```
+            A preview of the build will soon be available at <https://julialogging.github.io/previews/package-update/>.
           commit-message: |
             Automatic Pkg.update() with the following changes:
 
