Fix link

Author: cahofmeyr

migration-guides/mongodb-atlas.mdx

@@ -264,7 +264,7 @@ A few things to note regarding the PowerSync client-side schema:
 
 * The schema does not explicitly specify an `id` column, since PowerSync automatically creates an `id` column of type `text`.
 * SQLite has very simple data types which are [used by](/usage/sync-rules/types#types) PowerSync.
-* For MongoDB specific data types, refer to [MongoDB Type Mapping](/usage/sync-rules/types#mongodb-beta-type-mapping).
+* For MongoDB specific data types, refer to [MongoDB Type Mapping](/usage/sync-rules/types#mongodb-type-mapping).
 * PowerSync also supports [syncing attachments or files](/usage/use-case-examples/attachments-files) using helper packages.