* chore(release): prepare v0.6.3-beta
- Fix#220: Installer default tag now points to correct version
- Update version from 0.6.2-beta to 0.6.3-beta
- Update documentation version references
- Update website schema and badges
- Add v0.6.3-beta changelog entry
The v0.6.2-beta installer was defaulting to v0.6.1-beta which is
missing the psutil dependency, causing fresh installs to fail.
* docs(update): simplify update guide, remove duplicate version history