Merge pull request #725 from jiminhsieh/ticket/#704

Fix broken links of "Problem with this page?"

Author: heathermiller

_includes/sidebar-toc.html

@@ -6,7 +6,7 @@ <h5>Contents</h5>
 
 		</div>
 		<hr>
-		<div class="help-us"><a href="https://github.com/scala/scala-lang/blob/master/{{ page.relative_path }}"><i class="fa fa-pencil" aria-hidden="true"></i> Problem with this page?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Please help us fix it!</a></div>
+		<div class="help-us"><a href="https://github.com/scala/scala-lang/blob/master/{% if page.collection %}{{ page.relative_path }}{% else %}{{ page.path }}{% endif %}"><i class="fa fa-pencil" aria-hidden="true"></i> Problem with this page?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Please help us fix it!</a></div>
 	</div>
 </div>
 {% endif %}