[server] Reprase messages of db-check to avoid using "system" and "sources"
And rather mention "entity type table" and "entities" table, which are
clearer references.
.. -*- coding: utf-8 -*-
.. _Part1:
--------------------------
Introduction to *CubicWeb*
--------------------------
This first part of the book offers different reading path to
discover the *CubicWeb* framework, provides a tutorial to get a quick
overview of its features and lists its key concepts.
.. toctree::
:maxdepth: 2
:numbered:
history
concepts.rst