Added dev mode and don't autorun on PRs. Added cmdstanr to workflow

Author: VisruthSK

.github/workflows/pkgdown.yaml

@@ -4,7 +4,6 @@ on:
   # build dev site on merged pushes
   push:
     branches: [main, master]
-  pull_request:
   # build full site on releases
   release:
     types: [published]
@@ -34,7 +33,7 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::pkgdown, local::., any::withr, stan-dev/pkgdown-config
+          extra-packages: any::pkgdown, local::., any::withr, stan-dev/pkgdown-config, stan-dev/cmdstanr
 
       - name: Build site
         run: |

_pkgdown.yml

@@ -46,7 +46,10 @@ articles:
       The document below explains one way to host a shinystan app online.
     contents:
       - deploy_shinystan
-      
+
+development:
+  mode: auto
+
 reference:
   - title: "Package overview"
     desc: >