docs: update README with build matrix link for clarity

- Update README to include a reference to the actual build matrix in `docker_publish.yml`.

Signed-off-by: CHEN, CHUN <[email protected]>

README.md

@@ -45,7 +45,7 @@ docker run --gpus all -it -v ".:/app" ghcr.io/jim60105/whisperx:no_model    -- -
 The image tags are formatted as `WHISPER_MODEL`-`LANG`, for example, `tiny-en`, `base-de`, `large-v3-zh` or `distil-large-v3-ja`.  
 Please be aware that the whisper models `*.en`,  `large-v1`, `large-v2` have been excluded as I believe they are not frequently used. If you require these models, please refer to the following section to build them on your own.
 
-You can find all available tags at [ghcr.io](https://github.com/jim60105/docker-whisperX/pkgs/container/whisperx/versions?filters%5Bversion_type%5D=tagged).
+You can find the actual build matrix in [docker_publish.yml](.github/workflows/docker_publish.yml#L212) and all available tags at [ghcr.io](https://github.com/jim60105/docker-whisperX/pkgs/container/whisperx/versions?filters%5Bversion_type%5D=tagged).
 
 In addition, there is also a `no_model` tag that does not include any pre-downloaded models, also referred to as `latest`.