Bump version to v2.2.0 (#238)

Signed-off-by: Frost Ming <me@frostming.com>

Author: frostming

CHANGELOG.md

@@ -1,3 +1,18 @@
+## v2.2.0(2025-08-08)
+
+### Added
+
+- Add comprehensive usage documentation guide.
+- Support GFM alerts in GitHub Flavored Markdown extension.
+
+### Changed
+
+- Make python-slugify dependency optional for the TOC extension.
+
+### Fixed
+
+- Fix code formatting issues.
+
 ## v2.1.4(2025-06-13)
 
 ### Fixed

marko/__init__.py

@@ -23,7 +23,7 @@
     from .block import Document
     from .parser import ElementType
 
-__version__ = "2.1.4"
+__version__ = "2.2.0"
 
 
 class SetupDone(Exception):

noxfile.py

@@ -19,7 +19,7 @@ def benchmark(session):
 
 @nox.session
 def docs(session):
-    session.install("-r", "docs/reqs.txt")
+    session.install("pdm", "install", "-G", "doc", external=True)
     session.install("sphinx-autobuild")
 
     session.run(