title: Django FloatField in ModelForm with 2 precision point
body: <p>I have a FloatField in one of my model. I Add/Edit it using ModelForms. What I need is that,
  when I edit, the Float value stored in FloatField to be rendered with exactly 2 precision points.</p>
  
  <p>i.e. if my stored value is <code>1000.0 or 1000.123</code>, I want the input field of form to show initial value of <code>1000.00 or 1000.12</code>.</p>
  
  <p>Any suggestion on approach will be appreciated. Thank you all.</p>