Updated message to properly inform how to annotate a submission.
MODIFY
app/views/submissions/view.html.erb
app/views/submissions/view.html.erb
<h3 class="annotationHeader">Summary</h3>
<% if @problemSummaries.empty? then %>
<% if (@cud.instructor? or @cud.course_assistant?) then %>
- <p>Click anywhere on the code to annotate.</p>
+ <p>Hover over a line of code and click the green box to annotate.</p>
<% else %>
<p>Nothing to summarize yet.</p>
<% end %>

Updated message to properly inform how to annotate a submission. (#773)