rename content/post to content/posts

scripts/migrate_slugs.js

@@ -2,7 +2,7 @@ const fs = require('fs');
 const path = require('path');
 const matter = require('gray-matter');
 
-const postsDir = path.resolve(__dirname, '../content/post');
+const postsDir = path.resolve(__dirname, '../content/posts');
 
 function formatDate(date) {
     if (!date) return null;