Did I post the amendment for my state taxes ,as required by Maryland, correctly?

No one can see your return so we cannot answer whether you amended correctly.  You are the only one who can access your account or your tax return.   If you have a specific question or concern about what you did----we can try to help.

What does mean when it says in process under ammendment 

It means they are working on it and you have to wait for them to get finished with it.