Deploy dev site alongside release site

Author: VisruthSK

.github/workflows/pkgdown.yaml

@@ -1,6 +1,10 @@
 # Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
 # Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
 on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
   release:
     types: [published]
   workflow_dispatch:
@@ -65,6 +69,7 @@ jobs:
         shell: Rscript {0}
 
       - name: Deploy to GitHub pages 🚀
+        if: github.event_name != 'pull_request'
         uses: JamesIves/github-pages-deploy-action@v4.5.0
         with:
           clean: false

_pkgdown.yml

@@ -3,6 +3,8 @@ destination: docs
 template:
   params:
     bootswatch: cosmo
+development:
+  mode: auto
 navbar:
   title: loo
   left: