fix doc typo

Author: bckohan

doc/source/tutorials/index.rst

@@ -6,7 +6,7 @@
 Tutorials
 =========
 
-Enumerations in Python can provide rich class based interfaces well suited to many scenarios. We
+Enumerations in Python can provide rich class based interfaces well suited to many use cases. We
 present several real world scenarios here that demonstrate the capability of django-enum_ to get
 your :class:`~django_enum.fields.EnumField` to do more work.