Update release instructions

Author: christophetd

README.md

@@ -44,7 +44,7 @@ go install -v github.com/datadog/grimoire/cmd/grimoire@latest
 
 ```bash
 brew tap datadog/grimoire https://github.com/DataDog/grimoire
-brew install datadog/stratus-red-team/grimoire
+brew install datadog/grimoire/grimoire
 ```
 
 ### Pre-built binaries
@@ -206,4 +206,4 @@ That said, Stratus Red Team has a dedicated section `Detonation logs` for every
 
 ### What about CloudTrail Data Events?
 
-Data events are not supported for now. If you're interested, please upvote [this issue](https://github.com/DataDog/grimoire/issues/1).
+Data events are not supported for now. If you're interested, please upvote [this issue](https://github.com/DataDog/grimoire/issues/1).