update python and bootstrap version in docs

Author: delijati

README.rst

@@ -35,8 +35,8 @@ use cases <https://deformdemo.pylonsproject.org/>`_ are supported out of the box
 
 Deform integrates with the `Pyramid web framework <https://trypyramid.com/>`_
 and several other web frameworks. Deform comes with `Chameleon templates
-<https://chameleon.readthedocs.io/en/latest/>`_ and `Bootstrap 3
-<https://getbootstrap.com/docs/3.3/>`_ styling. Under the hood, `Colander schemas
+<https://chameleon.readthedocs.io/en/latest/>`_ and `Bootstrap 5
+<https://getbootstrap.com/docs/5.3/>`_ styling. Under the hood, `Colander schemas
 <https://github.com/Pylons/colander>`_ are used for serialization and
 validation. The `Peppercorn <https://github.com/Pylons/peppercorn>`_ library
 maps HTTP form submissions to nested structure.

docs/index.rst

@@ -4,7 +4,7 @@ Deform
 ======
 
 :mod:`deform` is a Python HTML form generation library.  It runs under Python
-2.x, 3.x and PyPy.
+>= 3.8 and PyPy3.
 
 Deform is a Python form library for generating HTML forms on the server side.
 `Date and time picking widgets <https://deformdemo.pylonsproject.org/datetimeinput/>`_,