Fix typo in docs/reference/config.md (#1764)

Dexter2389 · web-flow · commit e05bba65c432 · 2022-07-31T10:18:48.000-07:00
diff --git a/docs/reference/config.md b/docs/reference/config.md
@@ -241,7 +241,7 @@ overrides:
     overrides:
       - db_type: "timestampz"
         nullable: true
-        engine: ""postgresql
+        engine: "postgresql"
         go_type:
           import: "gopkg.in/guregu/null.v4"
           package: "null"
