add docs

Author: junhaoliao

docs/src/dev-guide/building-package.md

@@ -69,5 +69,16 @@ To clean up all build artifacts, run:
 task clean
 ```
 
+## Building a Docker image
+
+To build a Docker image containing the CLP package, run:
+
+```shell
+task docker-image-package
+```
+
+This will create a Docker image named `clp-package-<os>-ubuntu-jammy:dev` where `<os>` is `x86` or
+`arm64`.
+
 [clp-issue-872]: https://github.com/y-scope/clp/issues/872
 [Task]: https://taskfile.dev/

docs/src/dev-guide/tooling-containers.md

@@ -133,6 +133,16 @@ environment.
   tools/docker-images/clp-execution-base-ubuntu-jammy
   ```
 
+## clp-package-x86-ubuntu-jammy
+
+An image containing the CLP package built in an Ubuntu Jammy x86_64 environment.
+
+* Path:
+
+  ```text
+  tools/docker-images/clp-package-ubuntu-jammy
+  ```
+
 [core-deps-centos-stream-9]: https://github.com/y-scope/clp/pkgs/container/clp%2Fclp-core-dependencies-x86-centos-stream-9
 [core-deps-ubuntu-jammy]: https://github.com/y-scope/clp/pkgs/container/clp%2Fclp-core-dependencies-x86-ubuntu-jammy
 [core-ubuntu-jammy]: https://github.com/y-scope/clp/pkgs/container/clp%2Fclp-core-x86-ubuntu-jammy

docs/src/dev-guide/tooling-gh-workflows.md

@@ -76,6 +76,10 @@ This workflow builds CLP-core on macOS and runs its unit tests.
 This workflow builds a container image that contains the dependencies necessary to run the CLP
 package.
 
+## clp-package-image-build
+
+This workflow builds a container image that contains the CLP package.
+
 ## clp-lint
 
 This workflow runs linting checks on the codebase.