Fix github issues hyperlink (facebook#406)

cbcoutinho · hramos · commit 258277c0bec5 · 2018-06-15T09:13:24.000-07:00
diff --git a/website/pages/en/versions.js b/website/pages/en/versions.js
@@ -81,7 +81,7 @@ class Versions extends React.Component {
               verify the changes
             </a>{" "}
             and to identify any issues by{" "}
-            <a href="github.com/facebook/react-native/issues">
+			<a href="https://github.com/facebook/react-native/issues">
               writing clear, actionable bug reports
             </a>. Eventually, the release candidate will be promoted to stable.
           </p>
