This PR updates the `README.md` files with the following changes:
- Removal of CLI deployment.
- Amends Blitz.js to be in line with other `README.md` formats.
We renamed the GitHub repository from `zeit/now` to `vercel/vercel` so this PR updates all references to the repo URL.
There were also a few remaining references to Now CLI that have been updated to Vercel CLI.
* Add test to frameworks
* Add example for Docusaurus v2
* Add example for ionic-angular
* Update READMEs
* Use existing versions
* Reset yarn.lock
* Add schema validation and add missing Scully.io logo