Note PyPy support in docs

README.md

@@ -1,6 +1,6 @@
 # `backports.zoneinfo`: Backport of the standard library module `zoneinfo`
 
-This package was originally the reference implementation for [PEP 615](https://www.python.org/dev/peps/pep-0615/), which proposes support for the IANA time zone database in the standard library, and now serves as a backport to Python 3.6+.
+This package was originally the reference implementation for [PEP 615](https://www.python.org/dev/peps/pep-0615/), which proposes support for the IANA time zone database in the standard library, and now serves as a backport to Python 3.6+ (including PyPy).
 
 This exposes the `backports.zoneinfo` module, which is a backport of the [`zoneinfo`](https://docs.python.org/3.9/library/zoneinfo.html#module-zoneinfo) module. The backport's documentation can be found [on readthedocs](https://zoneinfo.readthedocs.io/en/latest/).
 

docs/index.rst

@@ -3,7 +3,7 @@
 
 This was originally the reference implementation for :pep:`615`, which adds
 support for the IANA time zone database to the Python standard library, but now
-serves as a backport of the module to Python 3.6+.
+serves as a backport of the module to Python 3.6+ (including PyPy).
 
 The upstream documentation can be found at :mod:`zoneinfo`. A mirror of the
 documentation pinned to the version supported in the backport can be found at