Update README.md

Co-authored-by: Sam Morrow <info@sam-morrow.com>

Author: juruen

README.md

@@ -387,7 +387,8 @@ This will install the `github-mcp-server` binary in your `$GOPATH/bin` directory
 Find where the binary is installed by running:
 
 ```bash
-which github-mcp-server
+(note this assumes $GOPATH/bin is in your $PATH)
+which github-mcp-server 
 ```
 
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