fix(docs): Minor documentation amendment (#1739)

* Unify pgvector and postgres connection settings

* Remove local changes

* Update file pgvector->postgres

* postgresql should be postgres

fern/docs/pages/manual/vectordb.mdx

@@ -73,7 +73,7 @@ The available configuration options are:
 For example:
 ```yaml
 vectorstore:
-  database: postgresql
+  database: postgres
 
 postgres:
   host: localhost