Merge pull request #213 from cmu-delphi/ndefries/deploy-website-on-dev

Deploy docs website on push/pull to `dev`, since we don't have a `main` branch

Author: dshemetov

.github/workflows/pkgdown.yaml

@@ -5,9 +5,9 @@
 # update the documentation web site on pushes to `dev` branch.
 on:
   push:
-    branches: [main]
+    branches: [dev]
   pull_request:
-    branches: [main]
+    branches: [dev]
   release:
     types: [published]
   workflow_dispatch: