Fix table formatting in documentation

Author: jovanpop-msft

articles/synapse-analytics/sql/query-cosmos-db-analytical-store.md

@@ -87,7 +87,6 @@ In addition to the common properties in the SQL connection string that are descr
 The examples of connection strings are shown in the following table:
 
 | Authentication type | Connection string |
-| --- | --- |
 | CosmosDB database account master key | `account=<account name>;database=<db name>;region=<region name>;key=<account master key>` |
 | Synapse workspace managed identity | `account=<account name>;database=<db name>;region=<region name>;authtype=ManagedIdentity` |
 ```