docs: url (#1852)

Easier to read and remain consistent with usage.

Author: sourabh504

packages/docs/guide/index.md

@@ -34,7 +34,7 @@ Note how instead of using regular `a` tags, we use a custom component `router-li
 
 ### `router-view`
 
-`router-view` will display the component that corresponds to the url. You can put it anywhere to adapt it to your layout.
+`router-view` will display the component that corresponds to the URL. You can put it anywhere to adapt it to your layout.
 
 <VueMasteryLogoLink></VueMasteryLogoLink>