Enhancement proposal: Anonymizing output

### Idea

It would be awesome to be able to anonymize the recorded data, e.g. for publishing purposes.
If you want for example to hide IP or DNS information.

### Session mockup:

```
tmux2html --pipe-through-command '/bin/sed "s/mydomain.org/example.com/g"' -o /tmp/anonimized_output.html --interval 0.05 --duration 0 0:3.0
```