Merge pull request #927 from gvnnn/update-readme

Update the instructions to install from the Homebrew SRE tap

Author: openshift-merge-bot[bot]

README.md

@@ -12,8 +12,9 @@ Currently, it mainly supports related work for AWS, especially [aws-account-oper
 
 ### MacOS
 
-```
-$ brew install osdctl
+```brew
+brew tap openshift-online/sre-tools
+brew install openshift-online/sre-tools/osdctl
 ```
 
 ### Build from source