feat: Document Liquid template functions (#306)

* add action

* add make target

* download docs

* add menu entry

* update old doc

* format

* pull docs

.github/workflows/cron.yaml

@@ -1,10 +1,10 @@
-name: Refresh Operator Docs
+name: Refresh Docs
 on:
   schedule:
     - cron: '0 0 * * *'
 
 jobs:
-  gendocs:
+  operator-docs:
     runs-on: ubuntu-latest
     permissions:
       contents: 'write'
@@ -25,4 +25,23 @@ jobs:
         commit-message: Update docs for operator
         branch: docs-${{steps.date.outputs.date}}
         labels: release
-        base: main
+        base: main
+  liquid-docs:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: 'write'
+      id-token: 'write'
+      pull-requests: 'write'
+    steps:
+      - uses: actions/checkout@v3
+      - run: make liquid-docs
+      - id: date
+        run: echo "date=$(date +%Y%m%d%H%M%S)" >> $GITHUB_OUTPUT
+      - uses: peter-evans/create-pull-request@v5
+        with:
+          title: "docs: Update supported Liquid filters docs"
+          body: Automated pull request to regenerate supported Liquid filters docs.
+          commit-message: update supported Liquid filters docs
+          branch: docs-${{steps.date.outputs.date}}
+          labels: enhancement
+          base: main

Makefile

@@ -10,4 +10,7 @@ web: ## runs the docs site locally
 	yarn dev
 
 crd-docs:
-	curl -L https://raw.githubusercontent.com/pluralsh/console/master/go/controller/docs/api.md --output pages/deployments/operator/api.md
+	curl -L https://raw.githubusercontent.com/pluralsh/console/master/go/controller/docs/api.md --output pages/deployments/operator/api.md
+
+liquid-docs:
+	curl -L https://raw.githubusercontent.com/pluralsh/polly/main/docs/liquid-filters.md --output pages/deployments/templating-filters.md