describe ratatui crate support in readme

Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 rust-version = "1.56.1"
 authors = ["rhysd <lin90162@yahoo.co.jp>"]
 description = """
-tui-textarea is a simple yet powerful text editor widget for tui-rs. Multi-line
+tui-textarea is a simple yet powerful text editor widget for tui-rs and ratatui. Multi-line
 text editor can be easily put as part of your TUI application.
 """
 license = "MIT"
@@ -13,7 +13,7 @@ homepage = "https://github.com/rhysd/tui-textarea#readme"
 repository = "https://github.com/rhysd/tui-textarea"
 readme = "README.md"
 categories = ["text-editors", "text-processing"]
-keywords = ["tui", "textarea", "editor", "input", "edit"]
+keywords = ["tui", "textarea", "editor", "input", "edit", "ratatui"]
 include = [
     "/src",
     "/examples",