Update README.rst

Add budge for 3.15 nogil

Author: sergey-dryabzhinsky

README.rst

@@ -101,6 +101,9 @@ python-zstd
 .. |cpython315x64u16| image:: https://github.com/sergey-dryabzhinsky/python-zstd/actions/workflows/Build_wheels_for_cpython315_x86_64_u16.yml/badge.svg
     :target: https://github.com/sergey-dryabzhinsky/python-zstd/actions/workflows/Build_wheels_for_cpython315_x86_64_u16.yml
 
+.. |cpython315tx64u16| image:: https://github.com/sergey-dryabzhinsky/python-zstd/actions/workflows/Build_wheels_for_cpython315t_x64_u16.yml/badge.svg
+    :target: https://github.com/sergey-dryabzhinsky/python-zstd/actions/workflows/Build_wheels_for_cpython315t_x64_u16.yml
+
 |Downloads| |monthly| |weekly|
 
 +----------------------------+----------------------+
@@ -162,6 +165,8 @@ python-zstd
 +----------------------------+----------------------+
 | cpython 3.15 x64 u16       | |cpython315x64u16|   |
 +----------------------------+----------------------+
+| cpython 3.15 noGIL x64 u16 | |cpython315tx64u16|  |
++----------------------------+----------------------+
 | Release                    | |releaseW|           |
 | 1.5.7.2                    |                      |
 +----------------------------+----------------------+