Update Example2b.rst
Update Example2b.rst

Minor grammar/wording changes
CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,saschazelzer/CppMicroServices,saschazelzer/CppMicroServices,CppMicroServices/CppMicroServices