Issue #2: add usage instructions to README

README.md

@@ -1,5 +1,17 @@
 ![Auto-Update](https://github.com/hashhar/dash-contrib-docset-feeds/workflows/Auto-Update/badge.svg)
 
-# XML Feeds For Zeal (Using Dash's User Contributed Docsets)
+# Zeal Compatible XML Feeds of Dash's User Contributed Docsets
+
+Import [Dash's](https://kapeli.com/dash)
+[User Contributed Docsets](https://github.com/Kapeli/Dash-User-Contributions)
+into [Zeal](https://zealdocs.org/)
+using the XML feeds provided by this GitHub repository
+
+- Click the desired docset XML file in this GitHub repository file listing
+- Click the "raw" button to get a raw XML file view
+- Copy the URL of that raw view
+- Open Zeal's docset management window (menu > Tools > Docsets...)
+- Click "Add feed", paste the URL there and click OK
+
+done.
 
-Just what the title says.