Add simple zsh completion script

[ghost]

No description provided.

[posva]

Oh, cool, thanks!

How do I test it?

[ghost]

1. Install zsh.
2. Create a .zshenv file in your $HOME directory containing this:

typeset -U fpath

fpath=(
  ~/path/to/completion
  $fpath
)

3. Open your terminal and run:

$ zsh
$ autoload -Uz compinit
$ compinit

4. Enter $ catimg - and press TAB (you should see this):

-c  -- convert colors to a restricted palette
-h  -- display a help message
-l  -- specify the amount of loops that catimg should repeat a GIF
-r  -- force the resolution of the image
-w  -- specify the width of the displayed image

Note:
In zsh you can also complete the option value (press TAB after -r and you will get 1 or 2).
Let me know whether to give some default values to -w or -l.

[posva]

Super cool! Thanks a lot. It looks nice as it is 🙂
I still have to see how to add them when installing with brew