doc: fix grammar

servo · larsbergstrom · Aug 5, 2016 · Aug 5, 2016 · Aug 5, 2016 · 2b7217633033cb7d5fedee8b82520eaa45c0f360
commit 2b7217633033cb7d5fedee8b82520eaa45c0f360
diff --git a/src/lib.rs b/src/lib.rs
@@ -368,7 +368,7 @@ impl Url {
 
     /// Return the origin of this URL (https://url.spec.whatwg.org/#origin)
     ///
-    /// Note: this return an opaque origin for `file:` URLs, which causes
+    /// Note: this returns an opaque origin for `file:` URLs, which causes
     /// `url.origin() != url.origin()`.
     ///
     /// # Examples