<nav id="header" class="navbar navbar-default">
  <div class="container-fluid">
    <div class="container">
      <!-- Brand and toggle get grouped for better mobile display -->
      <div class="navbar-header">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
          <span class="sr-only">Toggle navigation</span>
          <span class="glyphicon glyphicon-search"></span>
        </button>
        <a class="navbar-brand" href="{{ site.baseurl }}/">Assist</a>
      </div>

      <!-- Collect the nav links, forms, and other content for toggling -->
      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
        <form class="navbar-form navbar-right search" role="search">
          <div class="form-group">
            <input type="text" name="query" class="form-control search-box" placeholder="Search" />
          </div>
        </form>
      </div><!-- /.navbar-collapse -->
    </div>
  </div><!-- /.container-fluid -->
</nav>



<nav id="header" class="navbar navbar-default">
  <div class="container-fluid">
    <div class="container">
      <!-- Brand and toggle get grouped for better mobile display -->
      <div class="navbar-header">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
          <span class="sr-only">Toggle navigation</span>
          <span class="glyphicon glyphicon-search"></span>
        </button>
        <a class="navbar-brand" href="{{ site.baseurl }}/">Assist</a>
      </div>

      <!-- Collect the nav links, forms, and other content for toggling -->
      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
        <form class="navbar-form navbar-right search" role="search">
          <div class="form-group">
            <input type="text" name="query" class="form-control search-box" placeholder="I'm looking for..." />
          </div>
        </form>
      </div><!-- /.navbar-collapse -->
    </div>
  </div><!-- /.container-fluid -->
</nav>



Change placeholder for search input field.
Change placeholder for search input field.
