A few suggestions about documentation

[pavsenin]

Hello guys,

Most of the points below are clear for me now but were not when I started to learn Resolve.

1. Integrate the https://github.com/superroma/redux-inspired-backend/blob/master/README.md article into documentation. Only after this article, I started to understand a little where I am.

2. API > Read Models > Store > defineTable What are indexes? When indexes object contains a few elements, ReSolve creates a separate index for every property or one index with few fields? Are the indexes unique or non-unique? The first property in this object MUST BE unique? If docs contained this information I would save 4 hours of my time. Can I specify a type for the field? Which types are possible?

3. API > Read Models > Store > find What does it mean { createdAt: -1 } for the sortCondition argument?