fix(typo): Helix not Hexo

CITguy · web-flow · commit d88ee2ad9b92 · 2017-08-25T15:07:43.000-05:00
diff --git a/source/guides/install/index.html b/source/guides/install/index.html
@@ -1,5 +1,5 @@
 ---
-title: Installing HexoUI
+title: Installing HelixUI
 ---
 <section>
   <h2 id="assets">Assets</h2>
