Add managedInstaceAdministrators.json to readme file, which reprepres… (#6852)
Add managedInstaceAdministrators.json to readme file, which reprepres… (#6852)

* Add managedInstaceAdministrators.json to readme file, which reprepresents AutoRest configuration file for Sql

* Add missing json to package-composite-v2, package-composite-v1, package-pure-2017-03-preview and package-2017-03-preview

yugangw-msft/azure-rest-api-specs,AuxMon/azure-rest-api-specs,henry416/azure-rest-api-specs,hyonholee/azure-rest-api-specs,vladrai/azure-rest-api-specs,AppPlatPerf/azure-rest-api-specs,naveedaz/azure-rest-api-specs,naveedaz/azure-rest-api-specs,brjohnstmsft/azure-rest-api-specs,AppPlatPerf/azure-rest-api-specs,AsrOneSdk/azure-rest-api-specs,vladrai/azure-rest-api-specs,hyonholee/azure-rest-api-specs,AuxMon/azure-rest-api-specs,brjohnstmsft/azure-rest-api-specs,henry416/azure-rest-api-specs,JasonYang-MSFT/azure-rest-api-specs,solankisamir/azure-rest-api-specs,yugangw-msft/azure-rest-api-specs,AsrOneSdk/azure-rest-api-specs,johanste/azure-rest-api-specs,johanste/azure-rest-api-specs,solankisamir/azure-rest-api-specs