feat(README.md): Add simple theme readme
feat(README.md): Add simple theme readme

* feat(README.md): add first draft for theme readme

* feat(README.md): wording changes/fixes

* feat(README.md): move theme structure section, cut out un-needed words

* fix(README.md): fix wording for install that made no sense

* fix(README.md): fix WordPress references and remove un-needed files from structure

* fix(README.md): add yarn build to install instructions

* refactor(README.md): use forward slashes, not back slashes, for file paths

flyntwp/flynt-starter-theme,flyntwp/flynt-starter-theme,flyntwp/flynt-starter-theme