Fixed issue #1792: Used of modifier instead of component.

This issue was caused by a mixed up of modifier for component, where
modifier was used in the prose title, but in the body it was component.
This happened in the explanation of component partial application.

apps/tutorial/public/docs/6-partial-application/4-component/prose.md

@@ -1,4 +1,4 @@
-`component` is used for [partial application][wiki] of arguments to modifiers.
+`component` is used for [partial application][wiki] of arguments to conponents.
 
 This can be useful for pre-wiring arguments to complex components, or components with private implementation details that a consumer may not need to care about.