* chore(docs): rename `exampleSite` to `docs` and create `examples`
* chore(build): update build script to support new version format and source directories; add v0.10 to documentation menu
* chore(ci): add support for building docs for multiple versions
* chore(ci): enable fetching tags in GitHub Actions workflow
* chore(build): add v0.8.6 version to build script