1. I ran the documentation through a couple of tools that analyze readability, the doc is scored from 9 to 13 (Flesch-Kincaid Grade Level, FORCAST Grade Level - the indexes that are used for tech writing), which is a) unacceptable for an Introductory text, b) does not reach the recommended throughout CCS 8 grade level,

2. It contains a lot of non-technical "marketing" expressions - "great", "with a single click", "enjoyable", "easy" etc. IMO This info should be hosted on a https://www.eclipse.org/che/ website, not in the docs. Nothing wrong with a little bit of marketing but we have too much of it.