Fix interstitial on localhost, distill-appendix crash on unpublished articles

src/components/d-article.js

@@ -14,9 +14,6 @@ export class Article extends HTMLElement {
       for (const mutation of mutations) {
         for (const addedNode of mutation.addedNodes) {
           switch (addedNode.nodeName) {
-          // case 'HR':
-          //   console.warn('Use of <hr> tags in distill articles is discouraged as they interfere with layout! To separate sections, please just use h2 or h3 tags.');
-          //   break;
           case '#text': { // usually text nodes are only linebreaks.
             const text = addedNode.nodeValue;
             if (!isOnlyWhitespace.test(text)) {