Modularize code;

Add packaging instructions;
Add modules to handle Gemini file type (no Gemini server yet);
Improve handling of configuration.

assets/script/parse_markdown.js

@@ -0,0 +1,7 @@
+// Parse Markdown
+
+window.onload = function(){
+  for (element of document.querySelectorAll('#articles > ul > li > div > p')) {
+    element.innerHTML = marked.parse(element.textContent);
+  }
+}