Readme: Babel TS syntax plugin

Author: slevithan

README.md

@@ -57,9 +57,9 @@ The following options are available when running the Babel plugin:
 
 - **`removeImport`** — If `true`, removes any import declarations with module name `'regex'`.
 - **`disableUnicodeSets`** — If `true`, adds `regex` option `disable: {v: true}` to all regexes before transformation.
+- **`headerComment`** — If given a value, it will be added in a comment at the top of processed output/files.
 - **`optimize`** (*experimental*) — If `true`, attempts to further optimize the regex source generated by `regex`.
   - Uses an external library ([regexp-tree](https://github.com/DmitrySoshnikov/regexp-tree)'s optimizer) that doesn't support flag-<kbd>v</kbd>-only syntax and isn't fully context-aware, so you should check the output.
-- **`headerComment`** &mdash; If given a value, it will be added in a comment at the top of processed output/files.
 
 ## Compatibility
 
@@ -79,7 +79,7 @@ There are several ways to address this:
   - This maintains 100% parity between code running with or without the Babel plugin.
   - This doesn't support the use of <kbd>v</kbd>-only syntax.
 
-You can try all these options in the [demo REPL](https://slevithan.github.io/babel-plugin-transform-regex/demo/).
+You can try all of these options in the [demo REPL](https://slevithan.github.io/babel-plugin-transform-regex/demo/).
 
 ## Installation and usage
 
@@ -113,6 +113,8 @@ Or to set plugin options:
 }
 ```
 
+> If you're using TypeScript, also add [@babel/plugin-syntax-typescript](https://babeljs.io/docs/babel-plugin-syntax-typescript).
+
 Then add a script to your `package.json` to run the build:
 
 ```json