title: Script path for ExpressJS in node_modules
body: <p>I have an index.jade in my 'views' folder.</p>
  
  <pre><code>doctype html
  html
    head
      title= title
      link(rel='stylesheet', href='/stylesheets/main.css')
      script(src='../node_modules/some_package/package_script.min.js')
  </code></pre>
  
  <p>I have index.js in my routes folder with a router:</p>
  
  <pre><code>router.get('/', function(req, res) {
    res.render('index', { title: 'title goes here' })
  });
  </code></pre>
  
  <p>I keep getting a 404 error when I try to access the node_modules folder in the jade file in the console:
  <code>GET /node_modules/some_package/package_script.min.js 404 1ms - 19b</code></p>
  
  <p>How exactly does the file pathing work / how can I fix it for Express when I'm trying to access a script in the node_modules? Do I need to copy the necessary javascript files and place them under the 'javascripts' folder under 'public' for it to work? </p>
  
  <p>Thanks!</p>