feat(pdf-monkey): add documents generated trigger

packages/docs/pages/apps/pdf-monkey/triggers.md

@@ -0,0 +1,12 @@
+---
+favicon: /favicons/pdf-monkey.svg
+items:
+  - name: Documents Generated
+    desc: Triggers upon the successful completion of document generation.
+---
+
+<script setup>
+  import CustomListing from '../../components/CustomListing.vue'
+</script>
+
+<CustomListing />