With revised text and many updated screenshots:
Splash page:
http://brunoruviaro.github.io/ardour4-tutorial/
Table of Contents:
http://brunoruviaro.github.io/ardour4-tutorial/tags/
If anyone finds a typo or wants to contribute in any way, feel free to
contact me and/or see "how to contribute" info here:
http://brunoruviaro.github.io/ardour4-tutorial/how-to-contribute-0/
Thanks to my colleague Alex Christie for helping finish this revision.
Bruno