Update CHANGELOG.md

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Version History
 
-# Release v2.3.28
+## Release v2.3.28
 
 * Prioritize 'zlib from xcode sdk' flag correctly by @native-api in https://github.com/pyenv/pyenv/pull/2791
 * Prefer OpenSSL 3 in Homebrew in 3.13-dev by @edgarrmondragon in https://github.com/pyenv/pyenv/pull/2793
@@ -9,7 +9,7 @@
 * Update the OpenSSL dependency for Python 2.7.18 by @lpapp-foundry in https://github.com/pyenv/pyenv/pull/2797
 * Add CPython 3.12.0 by @edgarrmondragon in https://github.com/pyenv/pyenv/pull/2804
 
-# Release v2.3.27
+## Release v2.3.27
 
 * Prefer OpenSSL 3 in Homebrew since 3.12 by @native-api in https://github.com/pyenv/pyenv/pull/2781
 * Fix get-pip urls for older pypy versions by @TimPansino in https://github.com/pyenv/pyenv/pull/2788