convert to md

README.md

accessibility/accessibility.md

composer/package-naming-conventions.md

css/architecture.md

css/coding-standards.md

css/csscomb.md

css/file-organization.md

css/formatting-guidelines.md

css/reviewing-css.md

icon-w-drupal.png

javascript/api-documenation-standards.md

javascript/best-practices.md

javascript/coding-standards.md

javascript/eslint.md

javascript/jquery.md

logo.png

markup/markup-style-guide.md

mkdocs.yml

php/api-documentation-examples.md

php/api-documentation.md