docs(fix): replace posgresql with mongodb (#5297)

Author: nerda-codes

pages/managed-mongodb-databases/additional-content/migrating-to-managed-mongodb.mdx

@@ -18,4 +18,4 @@ The migration processes described below are defined by the expected downtime. Yo
 | Downtime tolerance | Recommended migration method | Benefits |
 | --- | --- | --- |
 | Can afford downtime | [Classic mongodump/mongorestore workflow](/managed-mongodb-databases/api-cli/backup-and-restore/) | Easy, straightforward |
-| Cannot afford downtime | [MongoDB® Cluster-to-Cluster sync tool](/managed-mongodb-databases/api-cli/cluster-to-cluster-sync) (`mongosync` binary) | Zero downtime, real-time data sync, flexible migration windows, easy rollback. Refer to the official PostgreSQL documentation for a list of the tool's [limitations](https://www.mongodb.com/docs/cluster-to-cluster-sync/current/reference/limitations/#std-label-c2c-limitationsl) |
+| Cannot afford downtime | [MongoDB® Cluster-to-Cluster sync tool](/managed-mongodb-databases/api-cli/cluster-to-cluster-sync) (`mongosync` binary) | Zero downtime, real-time data sync, flexible migration windows, easy rollback. Refer to the official MongoDB® documentation for a list of the tool's [limitations](https://www.mongodb.com/docs/cluster-to-cluster-sync/current/reference/limitations/#std-label-c2c-limitationsl) |