add ssh key format post

src/plugins/remark.js

@@ -6,6 +6,10 @@ import fs from 'node:fs';
 // build table of contents and inject into frontmatter
 export function localRemark() {
     return (tree, vfile) => {
+        if (vfile.data.fm.toc === false) {
+            return;
+        }
+
         let toc = [];
         let description = null;