* Add markdown linting

- add linter default rules
- adapt rules to current code
- fix the code for linting to pass
- add CI check

fix #1243

* Fix markdown for Substrate
* Fix tooling install
* Fix workflow
* Add documentation
* Remove trailing spaces
* Update .github/.markdownlint.yaml

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix mangled markdown/lists
* Fix captalization issues on known words

* fixes #13071

* remove warning

* chore: refresh of the substrate_builder image

fix #9715

* chore: renaming +  build script

* Fix spaces/tabs

* Add doc

* Remove non binary

* Update docker/substrate_builder.Dockerfile

Co-authored-by: Denis Pisarev <denis.pisarev@parity.io>