doc: correct the sed command for macOS in release process docs

PR-URL: #46397
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>

Author: juanarbol

doc/contributing/releases.md

@@ -428,6 +428,12 @@ and substitute this node version with
 sed -i "s/REPLACEME/$VERSION/g" doc/api/*.md
 ```
 
+For macOS requires the extension to be specified.
+
+```bash
+sed -i "" "s/REPLACEME/$VERSION/g" doc/api/*.md
+```
+
 or
 
 ```console