<form enctype="multipart/form-data" method="POST">
<div class="container">
<input type="text" name="name" class="form-control" placeholder="Имя, фамилия">
<input type="about" name="about" class="form-control" placeholder="Описание">
<input type="file" name="filename">
<button class="btn btn btn-success btn-block" type="sumbit">Register!</button>
</div>
</form>