Clean up plugin READMEs and a few plugins

- fasd
- history
- mercurial
- pylint
- repo
- yii2

plugins/history/README.md

@@ -1,15 +1,17 @@
-## history
+# history plugin
 
 Provides a couple of convenient aliases for using the `history` command to examine your command line history.
 
-### Requirements
+To use it, add `history` to the plugins array in your zshrc file:
 
-* None.
+```zsh
+plugins=(... history)
+```
 
-### Usage
+## Aliases
 
-* If `h` is called, your command history is listed. Equivalent to using `history`
-
-* If `hsi` is called with an argument, a **case insensitive** `grep` search is performed on your command history, looking for commands that match the argument provided
-
-* If `hsi` is called without an argument you will help on `grep` arguments
+| Alias | Command              | Description                                                      |
+|-------|----------------------|------------------------------------------------------------------|
+| `h`   | `history`            | Prints your command history                                      |
+| `hs`  | `history \| grep`    | Use grep to search your command history                          |
+| `hsi` | `history \| grep -i` | Use grep to do a case-insensitive search of your command history |

plugins/history/history.plugin.zsh

@@ -1,8 +1,3 @@
 alias h='history'
-
-function hs
-{
-    history | grep $*
-}
-
-alias hsi='hs -i'
+alias hs='history | grep'
+alias hsi='history | grep -i'