New docs site (#2521)

* initial docs

* more docs work

* Update readme + add license

* update frontend GH action

.github/workflows/frontend-pages.yml

@@ -1,6 +1,9 @@
-name: Deploy frontend
+name: Clear pages cache
 
-on: push
+on:
+  push:
+    branches:
+      - prod
 
 jobs:
   wait:
@@ -16,7 +19,6 @@ jobs:
           apiToken: ${{ secrets.CF_API_TOKEN }}
           accountId: '9ddae624c98677d68d93df6e524a6061'
           project: 'frontend'
-          githubToken: ${{ secrets.GITHUB_TOKEN }}
           commitHash: ${{ steps.push-changes.outputs.commit-hash }}
       - name: Purge cache
         if: github.ref == 'refs/heads/prod'