Markdownify multiple-choice questions and answers and feedback (#1262)

Author: illicitonion

common-theme/layouts/partials/multiple-choice.html

@@ -29,7 +29,7 @@
   <multiple-choice data-correct="{{$correct}}" class="c-quiz">
     <form slot="quiz">
       <fieldset class="c-quiz__fieldset" tabindex="0">
-        <legend class="c-quiz__legend">🤔 {{ $question }}</legend>
+        <legend class="c-quiz__legend">🤔 {{ $question | markdownify }}</legend>
         <ol class="c-quiz__list">
            {{range $index, $answer := $answers }}
           <li class="c-quiz__answer">
@@ -42,7 +42,7 @@
               id="answer-{{ $index }}"
               name="answer"
               value="{{ $index }}" />
-            {{ $answer }}</label
+            {{ $answer | markdownify }}</label
             >
           </li>
         {{ end }}
@@ -51,7 +51,7 @@
     </form>
     <section class="c-quiz__feedback" slot="feedback" aria-live="polite">
         {{ range $index, $fb := $feedback }}
-          <p class="c-quiz__remark" data-index="{{$index}}" >💬 {{ $fb }}</p>
+          <p class="c-quiz__remark" data-index="{{$index}}" >💬 {{ $fb | markdownify }}</p>
         {{ end }}
       </section>
   </multiple-choice>