* updated registry.json
* updated install info
* fix some formatting issues for registry.json instructions
- use `console` blocks for command-line examples
- use different prompts for "powershell" and "non-powershell" examples
- fix path of registry.json on macOS
- wrap some of the lines to ~80 chars
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>