Merge pull request zostera#342 from gregmccoy/docstring-edit

Added placeholder to docstring

Author: Dylan Verheul

bootstrap3/templatetags/bootstrap3.py

@@ -429,6 +429,8 @@ def bootstrap_field(*args, **kwargs):
                 * ``'medium'``
                 * ``'large'``
 
+        placeholder
+            Sets the placeholder text of a textbox
 
         horizontal_label_class
             Class used on the label when the ``layout`` is set to ``horizontal``.