Prepare 0.9 release

Author: mitya57

changelog

@@ -1,3 +1,11 @@
+Version 0.9, 2025-04-10
+=======================
+
+* Fixed handling of begin/end inside inline math.
+  - Thanks to Tianxiang Xia for the bug report.
+* Modernized packaging.
+* Python ≥ 3.9 and setuptools ≥ 77.0 are now required.
+
 Version 0.8, 2020-11-03
 =======================
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-markdown-math"
-version = "0.8"
+version = "0.9"
 description = "Math extension for Python-Markdown"
 readme = { file = "README.md", content-type = "text/markdown" }
 authors = [{ name = "Dmitry Shachnev", email = "[email protected]" }]