Handle <note> Tags

Fixes #17

src/components/Letter.vue

@@ -43,6 +43,9 @@
           <ul style="list-style-type:none;" class="letter-text">
             <li v-for="(value, key) in letter.text.body.l" :class="value._attributes.no" v-if="hasText(formatText(value._text))">
               {{value._attributes.no }}: {{ formatText(value._text) }}
+              <div class="teal--text" v-if="value.note && showComments">
+                <span v-for="elem in value.note"> {{elem._attributes.text}} </span>
+              </div>
             </li>
           </ul>
         </v-card-text>