readme: Update badges

To account for ClangBuiltLinux/continuous-integration2#479.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Author: nathanchance

readme.md

@@ -26,6 +26,8 @@
 | android‑4.9 | [![android-4.9-clang-16 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-16.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-16.yml) | [![android-4.9-clang-15 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-15.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-15.yml) | [![android-4.9-clang-14 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-14.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-14.yml) | [![android-4.9-clang-13 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-13.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-13.yml) | [![android-4.9-clang-12 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-12.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-12.yml) |     | [![android-4.9-clang-android build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-android.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-4.9-clang-android.yml) |
 | android‑mainline | [![android-mainline-clang-16 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-16.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-16.yml) | [![android-mainline-clang-15 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-15.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-15.yml) | [![android-mainline-clang-14 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-14.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-14.yml) | [![android-mainline-clang-13 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-13.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-13.yml) | [![android-mainline-clang-12 build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-12.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-12.yml) |     | [![android-mainline-clang-android build status](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-android.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/android-mainline-clang-android.yml) |
 
+[![Check clang version](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/clang-version.yml/badge.svg)](https://github.com/clangbuiltlinux/continuous-integration2/actions/workflows/clang-version.yml)
+
 ## Useful links
 
 - [Official Kernel Docs](https://www.kernel.org/doc/html/latest/kbuild/llvm.html)