Update README_building_and_developing.rst
Update README_building_and_developing.rst

fix literal error
bladams/pymssql,bladams/pymssql,Aloomaio/pymssql,zerolugithub/pymssql,JimDennis/pymssql,pymssql/pymssql,klothe/pymssql,bladams/pymssql,JimDennis/pymssql,zerolugithub/pymssql,klothe/pymssql,ramiro/pymssql,Aloomaio/pymssql,Aloomaio/pymssql,ramiro/pymssql,ramiro/pymssql,pymssql/pymssql,zerolugithub/pymssql,JimDennis/pymssql,klothe/pymssql