Installation and building the docs
==================================
You need to install sphinx. Assuming you have installed the python setuptools, just do:
  sudo easy_install sphinx
or
  sudo pip install sphinx
Once installed, go to the docs directory, and do:
  make html
Which will produce the html output in docs/_build/html
Documentation Guidelines
=======================
Doc strings in python files should be written in reStructured text: http://docutils.sourceforge.net/docs/user/rst/quickref.html
The typical docstring for Gramps should look like this:
"""Brief synopsis
This is a longer explanation, which may include  *italics* or **bold**, or
a link to another method :meth:`~gen.lib.person.Person.get_handle`
Then, you need to provide optional subsection in this order (just to be
consistent and have a uniform documentation, nothing prevent you to switch
the order). 
:param arg1: the first value
:type arg1: int or float or :class:`~gen.lib.baseobj.BaseObject`
:param arg2: the second value
:type arg2: int or float 
:param arg3: the third value
         
:returns: arg1/arg2 +arg3
:rtype: float, this is the return type
            
       
:Examples:
>>> import template
>>> a = MainClass()
>>> a.function2(1,1,1)
2
:note:
    can be useful to emphasize
    important feature
:See Also:
    :class:`MainClass1`
       
:Warnings:
    arg2 must be non-zero.
            
:Todo:
   check that arg2 is non zero. 
"""
For a class, use :cvar variable: for class variable, :ivar variable: for instance class
variable, .. attribute:: attribute: for attributes, .... 
See http://sphinx-doc.org/markup/ and http://sphinx-doc.org/markup/inline.html
Tips and Tricks
===============
Change in many files something:
perl -pi -w -e "s/L{PersonRef}/:class:\`\~gen.lib.personref.PersonRef\`/g;" *.py 
here L{PersonRef} is changed in :class:`~gen.lib.personref.PersonRef
`