docs(guide/location): add missing definite article

The sentence was missing a definite article so was unclear. Added one to clarify.

Closes #10547

docs/content/guide/$location.ngdoc

@@ -353,7 +353,7 @@ legacy browsers and hashbang links in modern browser:
 
 Here you can see two `$location` instances, both in **Html5 mode**, but on different browsers, so
 that you can see the differences. These `$location` services are connected to a fake browsers. Each
-input represents address bar of the browser.
+input represents the address bar of the browser.
 
 Note that when you type hashbang url into first browser (or vice versa) it doesn't rewrite /
 redirect to regular / hashbang url, as this conversion happens only during parsing the initial URL