Update README.md commands and header

README.md

@@ -1,34 +1,34 @@
-## kac
+![kac](https://atw.me/img/kac.svg)
+
+<hr>
+
 A command line tool for CHANGELOG files that follow the [Keep A Changelog][1] standard.
 
 ![Tests](https://github.com/atwalsh/kac/workflows/Tests/badge.svg)
 
 ### Usage
-Run `kac` in the same directory as your Changelog. By default, `kac` looks for a file called `CHANGELOG.md` 
+
+Run `kac` in the same directory as your Changelog. By default, `kac` looks for a file called `CHANGELOG.md`
 (case-insensitive).
 
-```bash
+```
 Usage: kac [OPTIONS] COMMAND [ARGS]...
 
+  A CLI tool for CHANGELOG files that follow the Keep-a-Changelog standard.
+
 Options:
   --help  Show this message and exit.
 
 Commands:
-  bump      Bump a Changelog.
-  copy      Copy a version's release text.
-  new       Create an empty CHANGELOG.md file.            
+  bump  Bump the latest version of a CHANGELOG file.
+  copy  Copy the latest release's changelog text.
+  init  Create an empty CHANGELOG file.
+  
 ```
 
 ## Limitations
+
 - Must be run in the same directory as your CHANGELOG file
-- Assumes you have changes in the "Unreleased" section 
 - Only works for semver
-- Only supports versions in the `MAJOR.MINOR.PATCH` format. A beta version ending in `-beta`, for example, 
-will fail.
-
-## To-Do
-- [ ] Add default text for versions with no notable changes
-- [ ] Undo bump
-- [ ] Support labels for pre-release and build metadata
 
 [1]: https://keepachangelog.com/en/1.0.0/