docs(README): Add project tags

Author: brlin-tw

README.md

@@ -5,6 +5,8 @@ Documenting the process of doing [the "Getting Started with Java" tutorial](http
 <https://gitlab.com/brlin/getting-started-with-java-lab>  
 [![The GitLab CI pipeline status badge of the project's `main` branch](https://gitlab.com/brlin/getting-started-with-java-lab/badges/main/pipeline.svg?ignore_skipped=true "Click here to check out the comprehensive status of the GitLab CI pipelines")](https://gitlab.com/brlin/getting-started-with-java-lab/-/pipelines) [![GitHub Actions workflow status badge](https://github.com/brlin-tw/getting-started-with-java-lab/actions/workflows/check-potential-problems.yml/badge.svg "GitHub Actions workflow status")](https://github.com/brlin-tw/getting-started-with-java-lab/actions/workflows/check-potential-problems.yml) [![pre-commit enabled badge](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white "This project uses pre-commit to check potential problems")](https://pre-commit.com/) [![REUSE Specification compliance badge](https://api.reuse.software/badge/gitlab.com/brlin/getting-started-with-java-lab "This project complies to the REUSE specification to decrease software licensing costs")](https://api.reuse.software/info/gitlab.com/brlin/getting-started-with-java-lab)
 
+\#java \#tutorial \#lab-projects
+
 ## Licensing
 
 Unless otherwise noted([comment headers](https://reuse.software/spec-3.3/#comment-headers)/[REUSE.toml](https://reuse.software/spec-3.3/#reusetoml)), this product is licensed under [the MIT license](https://opensource.org/license/mit), or any of its more recent versions of your preference.