[OpenSER-Docs] Add examples in module documentation

[Iñaki Baz Castillo]

Hi, for now they are just a few modules that include real examples in their 
doc. Usually, a module doc just shows examples of how to set each parameter 
or use each function, but there is not a "global" example.

I don't know if would be good to include a section "Examples" in the module 
doc template (it could saturate the info), or maybe a section "Examples" 
containing links to the wiki or external references.

What do you think about it?


-- 
Iñaki Baz Castillo
ibc at in.ilimit.es