title: htaccess rewrite folder-dash to .html
body: <p>I need to rewrite folder.html to folder/
  How can I do that?</p>
  
  <p>I tryed:</p>
  
  <pre><code>RewriteEngine on
  RewriteRule ^folder.html(.*) folder/$1
  </code></pre>
  
  <p>But it's not working</p>