Update RELEASING.md

Co-authored-by: Łukasz Skarżyński <[email protected]>

Author: youtux

RELEASING.md

@@ -6,6 +6,7 @@ poetry version <newversion>
 ```
 2. Update the [CHANGES.rst](CHANGES.rst) file with the release notes and the new version.
 3. Build and publish the package:
+
 ```shell
 poetry publish --build
 ```