[AutoPR Azure.ResourceManager.Migrate] Microsoft.Migrate - Split the existing readme(s) into separate files based on service#9282

azure-sdk wants to merge 1 commit intomainazure-sdk/azure-sdk-for-net:mainfrom

sdkAuto/30705/Azure.ResourceManager.Migrateazure-sdk/azure-sdk-for-net:sdkAuto/30705/Azure.ResourceManager.MigrateCopy head branch name to clipboard