Improve our Production docs

[Amruta-Ranade]

@jseldess Need to identify which production docs we want feedback on. Will update this issue with the links to those docs.

[lleonard-msft]

In Step 3 of Start a Local Cluster, the use of ports for the SQL client is a bit confusing to a newbie. Perhaps a simple sentence mentioning the default port after starting the session would help.

[jseldess]

Updated in the meantime.