message: [demo] Adds missing point at end of sentence
diff: @@ -61,7 +61,7 @@ const DescriptionPanel: FC = () => {
  betweenness centrality
  </a>
  . More central nodes (ie. bigger nodes) are important crossing points in the network. Finally, You can click a
  - node to open the related Wikipedia article
  + node to open the related Wikipedia article.
  </p>
  </Panel>
  );
  