adding Versions section to readme
adding Versions section to readme

yugangw-msft/azure-activedirectory-library-for-nodejs,AzureAD/azure-activedirectory-library-for-nodejs,AzureAD/azure-activedirectory-library-for-nodejs,yugangw-msft/azure-activedirectory-library-for-nodejs,AzureAD/azure-activedirectory-library-for-nodejs