* update README
remove matrix links
remove playground references (service reported as sunsetting)
OSPL rule per Docs style guide

* Apply suggestions from code review

Co-authored-by: Sacha Lansky <sacha@parity.io>

* Update README.md

* Apply suggestions from code review

Co-authored-by: lisa-parity <92225469+lisa-parity@users.noreply.github.com>

* (fix) chmod +x script

---------

Co-authored-by: Sacha Lansky <sacha@parity.io>
Co-authored-by: lisa-parity <92225469+lisa-parity@users.noreply.github.com>
Co-authored-by: parity-processbot <>