update features for bash, zsh, fish to include git dirty marker

Author: edouard-lopez

README.md

@@ -20,20 +20,22 @@ Original design by [sindresorhus/pure](https://github.com/sindresorhus/pure).
 <!-- ✔✖ -->
 | Feature                                                        | `bash` | `elvish` | `fish` | `ksh` | `powershell` | `tcsh` | `zsh` |
 | :------------------------------------------------------------- | :----- | :------- | :----- | :---- | :----------- | :----- | :---- |
-| Excellent prompt character `❯`                                 | **✔**    |          | **✔**    |       |              |        | **✔**   |
-| Display current directory tail                                 | **✔**    |          | **✔**    |       |              |        | **✔**   |
+| Excellent prompt character `❯`                                 | **✔**  |          | **✔**  |       |              |        | **✔** |
+| Display current directory tail                                 | **✔**  |          | **✔**  |       |              |        | **✔** |
 | Display `git` branch name                                      | **✔**  |          | **✔**  |       |              |        | **✔** |
-| Display `*` when `git` repository is _dirty_                   |        |          |        |       |              |        |       |
+| Display `*` when `git` repository is _dirty_                   | **✔**  |          | **✔**  |       |              |        | **✔** |
 | Display `⇡` when branch is _ahead_<br>(commits to push)        |        |          |        |       |              |        |       |
 | Display `⇣` when branch is _being_<br>(commits to pull)        |        |          |        |       |              |        |       |
-| Change `❯` to red <br>when previous command has failed         | **✔**    |          | **✔**    |       |              |        | **✔**   |
+| Change `❯` to red <br>when previous command has failed         | **✔**  |          | **✔**  |       |              |        | **✔** |
 | Update terminal title <br>with _current folder_ and _command_  |        |          |        |       |              |        |       |
 | Display _username_ and _hostname_ <br>when in an `SSH` session |        |          |        |       |              |        |       |
 | Display _duration_ <br>when command run more that `5` seconds  |        |          |        |       |              |        |       |
-| Display `Python` _virtualenv_ when activated                   | **✔**    |          | **✔**    |       |              |        | **✔**   |
+| Display `Python` _virtualenv_ when activated                   | **✔**  |          | **✔**  |       |              |        | **✔** |
 | Fine control over colors                                       |        |          |        |       |              |        |       |
 | Right prompt control                                           |        |          |        |       |              |        |       |
 | Display `VI` mode and custom symbol <br>for non-insert mode    |        |          |        |       |              |        |       |
+
+
 ## Install
 
 ⚠️ Under heavy development, use at your own risk! 💀