bug fix: postID -> post_index

src/functions.js

@@ -101,6 +101,13 @@ export function render_comment(comment_content) {
 };
 export function render_md(content) {
     const markdownit = require("markdown-it")
-    const md = markdownit()
+    const md = markdownit({
+        html: false,
+        xhtmlOut: false,
+        breaks: true,
+        linkify: false,
+        typographer: true,
+        quotes: true,
+    })
     return md.render(content)
 };