Merge pull request #4718 from edx/cdodge/fix-visual-bug

add space to table header

lms/templates/instructor/instructor_dashboard_2/e-commerce.html

@@ -84,7 +84,7 @@
                            <th class="c_code">${_("Code")}</th>
                            <th class="c_dsc">${_("Description")}</th>
                            <th class="c_course_id">${_("Course_id")}</th>
-                           <th class="c_discount">${_("Discount(%)")}</th>
+                           <th class="c_discount">${_("Discount (%)")}</th>
                            <th class="c_count">${_("Count")}</th>
                            <th class="c_action">${_("Actions")}</th>
                         </tr>