docs: Add a couple of new features to the intro document.
docs: Add a couple of new features to the intro document.

Aloomaio/pymssql,zerolugithub/pymssql,JimDennis/pymssql,zerolugithub/pymssql,bladams/pymssql,Aloomaio/pymssql,ramiro/pymssql,klothe/pymssql,pymssql/pymssql,JimDennis/pymssql,Aloomaio/pymssql,pymssql/pymssql,klothe/pymssql,ramiro/pymssql,bladams/pymssql,JimDennis/pymssql,bladams/pymssql,ramiro/pymssql,klothe/pymssql,zerolugithub/pymssql