Publish v23.0 docs

docs/releases/23000.md

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+## 2021.5.12 Magisk v23.0
+
+This release is focused on fixing regressions and bugs.
+
+Note: Magisk v22 is the last major version to support Jellybean and Kitkat. Magisk v23 only supports Android 5.0 and higher.
+
+### Bug Fixes
+
+- [App] Update snet extension. This fixes SafetyNet API errors.
+- [App] Fix a bug in the stub app that causes APK installation to fail
+- [App] Hide annoying errors in logs when hidden as stub
+- [App] Fix issues when patching ODIN tar files when the app is hidden
+- [General] Remove all pre Android 5.0 support
+- [General] Update BusyBox to use proper libc
+- [General] Fix C++ undefined behaviors
+- [General] Several `sepolicy.rule` copy/installation fixes
+- [MagiskPolicy] Remove unnecessary sepolicy rules
+- [MagiskHide] Update package and process name validation logic
+- [MagiskHide] Some changes that prevents zygote deadlock
+
+### Full Changelog: [here](https://topjohnwu.github.io/Magisk/changes.html)