Style/wording review

[Altai-man]

Listing here some places we have found in English version during reviewing of Russian translation.

• Section 1.2 title is Jargon. However, in this section we have tools names and no jargon at all. Probably needs to be renamed to something more appropriate.
• In section 3.4 (Types), it can be nice to add output.
• In section 7.4, list is used for only two elements. It is possible that it'd be more nice when seen in a single sentence.
• Intro explains about keywords such as does or is, but in fact those are traits, so it is a bit of misguiding here. But I am not sure how to explain such concept in, well, introduction. Similar thing, it says keyword has(used to define attributes), but in fact it is a scope declarator, not a "keyword". Or I am wrong here.
• Usages of "Output" inside of code tag and without it is mixed and inconsistent.

We did not review everything yet, so maybe new points will be added in comments later.

[Altai-man]

Section "9.7.1. Introduction", sentence "NO! We should use inheritance" firstly, seems a bit out of place with this capitalization and lacks dot at the end too.

Section "9.9 Roles", "Classes that wish to implement a role, do so using the does keyword". It seems a bit misleading or a bit strange to me. It is not a keyword that does implementation work. It may be better with something like Classes that implement a role declare about that using does keyword or something around this area.

Section "11. Regular Expressions", "is used to check if a string (enlightenment) contains the word (light)" - maybe we want quotes here, not parenthesis?