Fix punctuation in README.

Author: StanFromIreland

README.rst

@@ -4,7 +4,7 @@ tzdata: Python package providing IANA time zone data
 This is a Python package containing ``zic``-compiled binaries for the IANA time
 zone database. It is intended to be a fallback for systems that do not have
 system time zone data installed (or don't have it installed in a standard
-location), as a part of `PEP 615 <https://www.python.org/dev/peps/pep-0615/>`_
+location), as a part of `PEP 615 <https://www.python.org/dev/peps/pep-0615/>`_.
 
 This repository generates a ``pip``-installable package, published on PyPI as
 `tzdata <https://pypi.org/project/tzdata>`_.

docs/index.rst

@@ -4,9 +4,10 @@ tzdata: Python package providing IANA time zone data
 This is a Python package containing ``zic``-compiled binaries for the IANA time
 zone database. It is intended to be a fallback for systems that do not have
 system time zone data installed (or don't have it installed in a standard
-location), as a part of `PEP 615 <https://www.python.org/dev/peps/pep-0615/>`_
+location), as a part of `PEP 615 <https://www.python.org/dev/peps/pep-0615/>`_.
 
-This repository generates a ``pip``-installable package, published on PyPI as
+The `python/tzdata <https://github.com/python/tzdata>`_ repository generates a
+``pip``-installable package, published on PyPI as
 `tzdata <https://pypi.org/project/tzdata>`_.
 
 Overview