title: The first time I downloaded doom emacs the doom doctor command is giving errors. What should I do?
body: <p>I am really a beginner and don't understand how a lot of this stuff works. I just installed doom emacs, I've never used emacs before. I ran the doom doctor command and it gives me two warnings.</p>
  <pre><code>&gt; Checking Doom Emacs...
    ✓ Initialized Doom Emacs 2.0.9
    ✓ Detected 30 modules
    ✓ Detected 118 packages
    &gt; Checking Doom core for irregularities...
      Found font material-design-icons.ttf
      Found font weathericons.ttf
      Found font octicons.ttf
      Found font fontawesome.ttf
      Found font file-icons.ttf
      Found font all-the-icons.ttf
    &gt; Checking for stale elc files in your DOOMDIR...
    &gt; Checking your enabled modules...
  &gt; :lang markdown
        ! Couldn't find a markdown compiler, `markdown-preview' won't work
      &gt; :lang sh
        ! Couldn't find shellcheck. Shell script linting will not work
  
  There are 2 warnings!
  ✓ Finished in 3.7202s
  </code></pre>
  <p>What does this even mean? Can I just ignore it? Please bear with me I'm just beginning to learn this stuff. Thanks</p>