Currently there are a few workflows used in the development of WikibaseLaxeme that remain undocumented, these include: linting & codesniffing, producing static assests for local development, and running unit / integration tests. In order to allow for clear and transparent workflow process and ease onboarding to the codebase, running instructions for these should be included in the README or in a dedicated Development instructions markdown file linked from the main readme.
**Acceptance Criteria**:
Developer documentation includes:
- [ ] Updating local npm and composer dependencies
- [ ] Working with submodules
- [ ] Producing static assests for local development
- [ ] Linting / codesniffing instructions
- [ ] Unit / integration test running instructions
- [ ] Browser tests running instructions
**Notes**
The AC " Legacy test running documentation is centeralized in this document " was added by an external to our project and was decided as outside the scope of this task