Improve React HMR Article Naming

Closes #87.

Author: bebraw

content/how-to/hmr/hot-module-reload-with-react.md renamed to content/how-to/set-up-hmr-with-react.md

@@ -1,5 +1,5 @@
 ---
-title: How to Configure Hot Module Replacement with React?
+title: How to Set Up Hot Module Replacement with React?
 ---
 Hot Module Replacement (HMR) exchanges, adds, or removes modules while an
 application is running without a page reload.