##byzanz-record-window

Uses byzanz to record a selected window and creates an animated gif

Usage:

```bash
byzanz-record-window <duration in sec> <outfile.gif>
```

After running the above command, you will be prompted to select the window to record.  Once selected, there's a 5-second countdown before recording starts.


##byzanz-record-region

Uses byzanz to record a selected area of the screen and creates an animated gif

Usage:

```bash
byzanz-record-region <duration in sec> <outfile.gif>
```

After running the above command, you will be prompted to select the area to record.  Click and drag to create the selection rectangle.  Once selected, there's a 5-second countdown before recording starts.

Add readme with basic usage instructions
Add readme with basic usage instructions
