Ensure problems are CSS numbered on the assignments page

Author: bnmnetp

runestone/common/css/runestone-custom-sphinx-bootstrap.css

@@ -941,10 +941,10 @@ textarea#lp-result {
     opacity: 50%;
 }
 
-/* .runestone_caption:before {
+#questions .runestone_caption:before {
     counter-increment: rscomponent;
-    content: "Activity: "counter(rscomponent) " -- ";
-} */
+    content: "Problem: "counter(rscomponent) " -- ";
+}
 
 body {
     color: var(--bodyFont);