chore: update README for complete example (#229)

Co-authored-by: Andrej <[email protected]>

Author: akocbek

examples/complete/README.md

@@ -5,7 +5,6 @@ An end-to-end example that uses the IBM Cloud Terraform provider to create the f
 - A resource group, if one is not passed in.
 - A Key Protect instance with a root key.
 - An instance of Databases for MongoDB with BYOK encryption.
-- Set 250 max connection for Databases for MongoDB instance.
 - Service credentials for the database instance.
 - A sample virtual private cloud (VPC).
 - A context-based restriction (CBR) rule to only allow MongoDB to be accessible from within the VPC.