add badges to README

README.md

@@ -1,5 +1,7 @@
 tui-textarea
 ============
+[![crate][crates-io-badge]][crate]
+[![CI][ci-badge]][ci]
 
 [tui-textarea][crate] is a simple yet powerful text editor widget like `<textarea>` in HTML for [tui-rs][]. Multi-line
 text editor can be easily put as part of your TUI application.
@@ -500,11 +502,14 @@ Please see [CONTRIBUTING.md](./CONTRIBUTING.md) before making a PR.
 
 tui-textarea is distributed under [The MIT License](./LICENSE.txt).
 
+[crates-io-badge]: https://img.shields.io/crates/v/tui-textarea.svg
 [crate]: https://crates.io/crates/tui-textarea
+[ci-badge]: https://github.com/rhysd/tui-textarea/actions/workflows/ci.yml/badge.svg?event=push
+[ci]: https://github.com/rhysd/tui-textarea/actions/workflows/ci.yml
 [tui-rs]: https://github.com/fdehau/tui-rs
 [termion]: https://docs.rs/termion/latest/termion/
 [crossterm]: https://docs.rs/crossterm/latest/crossterm/
-[doc]: https://docs.rs/tui-textarea/latest/tui_textarea
+[doc]: https://docs.rs/tui-textarea/latest/tui_textarea/
 [tui-backend]: https://docs.rs/tui/latest/tui/backend/trait.Backend.html
 [repo]: https://github.com/rhysd/tui-textarea
 [new-issue]: https://github.com/rhysd/tui-textarea/issues/new