title: How to put "description" of the field in the form field?
body: <p>I am new to python coding. I am trying to create a form using flask and for one of the form field, want to add the field description, but I am not able to see it. </p>
  
  <p>Please help me out with the help text of the field. </p>
  
  <p>Below is sample PY code: </p>
  
  <pre><code>smp = StringField(label = 'Start of MP', description='Valid Format is YYYY-MM-DD', validators=[InputRequired()])
  </code></pre>
  
  <p>HTML code is as below:</p>
  
  <pre><code>&lt;div class="form-group"&gt;
                   {{ form.smp.label(class="form-control-label") }}
                      {% if form.smp.errors %}
                          {{ form.smp(class="form-control form-control-lg is-invalid") }}
                          &lt;div class="invalid-feedback"&gt;
                              {% for error in form.smp.errors %}
                                  &lt;span&gt;{{ error }}&lt;/span&gt;
                              {% endfor %}
                          &lt;/div&gt;
                      {% else %}
                          {{ form.smp(class="form-control form-control-lg") }}
                      {% endif %}
                  &lt;/div&gt;
  </code></pre>
  
  <p>What am I missing here, why description is not showing when I run HTML page? </p>