Wrap lines after the first word that crosses the 72nd character. Thus, the entire tip would look like this:

```rst
.. tip::

    By default the ``error_bubbling`` option is enabled for the
    :doc:`collection Field Type </reference/forms/types/collection>` which
    passes the errors to the parent form. If you want to attach the errors
    to the locations where they actually occure you have to set ``error_bubbling``
    to ``false``.
```