fix(quickstart): remove accidental space (angular#2248)

- Remove accidental space causing URL to be rendered incorrectly

Author: wesleycho

public/docs/ts/latest/quickstart.jade

@@ -40,7 +40,7 @@ figure.image-display
 :marked
   **Try it out**. Here's a link to a <live-example></live-example>.
 
-  You can also <a href="https://github .com/angular/quickstart/blob/master/README.md" target="_blank">
+  You can also <a href="https://github.com/angular/quickstart/blob/master/README.md" target="_blank">
   clone the entire QuickStart application</a> from GitHub.
 
 h2 Build this application!