Fix issues in Azure Storage README (#4460)
Fix issues in Azure Storage README (#4460)

* Fix errors in README.

* Fix more readme issues.

selvasingh/azure-sdk-for-java,Azure/azure-sdk-for-java,navalev/azure-sdk-for-java,Azure/azure-sdk-for-java,Azure/azure-sdk-for-java,selvasingh/azure-sdk-for-java,navalev/azure-sdk-for-java,navalev/azure-sdk-for-java,navalev/azure-sdk-for-java,Azure/azure-sdk-for-java,Azure/azure-sdk-for-java,selvasingh/azure-sdk-for-java,navalev/azure-sdk-for-java