Unclear on the concept

I’m exploring some of the weather station solutions for Linux. Folks have been doing various weather stats gathering applications for Windows based machines forever, I’m curious about doing a multiple-input monitoring system that will keep track of indoor, outdoor, and water temperature, and display them on a handy screen.
It looks like one of the more popular systems is Weather Display, which conveniently has a Linux version.
Excellent, thinks I. I’ll check it out. Oh, and on their Linux page, they have a handy Getting Started guide.
Which is a link to a Microsoft Word document.
The mind boggles.