Update README.md (#264)

Signed-off-by: Trung Lê <[email protected]>

Author: runlevel5

README.md

@@ -6,7 +6,7 @@
 [![docs](https://readthedocs.org/projects/pillow-heif/badge/?version=latest)](https://pillow-heif.readthedocs.io/en/latest/?badge=latest)
 [![codecov](https://codecov.io/gh/bigcat88/pillow_heif/branch/master/graph/badge.svg?token=JY64F2OL6V)](https://codecov.io/gh/bigcat88/pillow_heif)
 
-![PythonVersion](https://img.shields.io/badge/python-3.8%20%7C%203.9%20%7C%203.10%20%7C%203.11%20%7C%203.12-blue)
+![PythonVersion](https://img.shields.io/badge/python-3.8%20%7C%203.9%20%7C%203.10%20%7C%203.11%20%7C%203.12%20%7C%203.13-blue)
 ![impl](https://img.shields.io/pypi/implementation/pillow_heif)
 ![pypi](https://img.shields.io/pypi/v/pillow_heif.svg)
 [![Downloads](https://static.pepy.tech/personalized-badge/pillow-heif?period=total&units=international_system&left_color=grey&right_color=orange&left_text=Downloads)](https://pepy.tech/project/pillow-heif)
@@ -150,6 +150,7 @@ if im.info["depth_images"]:
 | CPython 3.10       |        ✅        |         ✅         |         ✅         |     ✅      |     ✅      |
 | CPython 3.11       |        ✅        |         ✅         |         ✅         |     ✅      |     ✅      |
 | CPython 3.12       |        ✅        |         ✅         |         ✅         |     ✅      |     ✅      |
+| CPython 3.13       |        ✅        |         ✅         |         ✅         |     ✅      |     ✅      |
 | PyPy 3.9 v7.3      |        ✅        |         ✅         |         ✅         |    N/A     |     ✅      |
 | PyPy 3.10 v7.3     |        ✅        |         ✅         |         ✅         |    N/A     |     ✅      |