docs: Add link to docs

Changes

1 changed files (+2/-0)

• README.md
  • @@ -8,6 +8,8 @@ [](https://github.com/pocka/slack-message-parser/actions)
    Parser library for [Slack message format](https://api.slack.com/docs/message-formatting). + [[Document](https://pocka.github.io/slack-message-parser/)] + ## Install ```sh