Use a script to auto-generate documentation for the core modules from the manifest file

docs/source/modules/enricher.md

@@ -0,0 +1,7 @@
+# Enricher Modules
+
+Enricher modules are used to add additional information to the items  that have been extracted. Common enrichment tasks include adding metadata to items, such as the hash of the item, a screenshot of the webpage when the item was extracted, or general metadata like the date and time the item was extracted.
+
+
+```{include} autogen/enricher.md
+```