Update several domains (#3851)

* README: fix typo

* azure: add azureedge.us

* add copilot-stg.com to bing/category-ai-!cn

* manhuagui: add mhgui.com

* spacex: add starlink.com

* tesla: remove dead domains

data/azure

@@ -52,6 +52,7 @@ azuredns-prd.info
 azuredns-prd.org
 azureedge-test.net
 azureedge.net
+azureedge.us
 azurefd.net
 azurehdinsight.cn @cn
 azureiotcentral.com