修复主页课程介绍显示有误的BUG

app/views/welcome/index.html.erb

@@ -65,7 +65,7 @@
 					 (<%= link_to "#{projectCount(project)}人", project_member_path(project) ,:course =>'0' %>) 			
 				</div>
 				<div class='text_nowrap' style="float: left;margin:5px; margin-left: 10px; width: 380px;">
-					<span class='font_lighter' title =<%=project.description.to_s%>><%=project.description.truncate(50, omission: '...')%></span>
+					<span class='font_lighter' title =<%=project.short_description.to_s%>><%=project.short_description.truncate(50, omission: '...')%></span>
 				</div>
 				<div style="position:absolute; bottom:0;right:0;margin:5px 10px 5px 5px ;">
                   <% issue_count = project.issues.count %>