feat: add 'boilerplates' as command alias

- Both 'boilerplate' and 'boilerplates' will now work
- Improves discoverability and user experience
- Both commands point to the same entry point

pyproject.toml

@@ -27,3 +27,4 @@ dependencies = [
 
 [project.scripts]
 boilerplate = "cli.__main__:run"
+boilerplates = "cli.__main__:run"