[SeasonOfDocs] GeoNetwork

[María Arias de Reyna]

Hi,

I just created the GeoNetwork section:
https://wiki.osgeo.org/wiki/Season_of_Docs_Ideas_2019#GeoNetwork

Although I have contributed to the documentation as GeoNetwork
maintainer, I haven't worked before with technical writers directly on
this scope but I already know our documentation is very
"developer-oriented" so we have a lot to improve :)

Cheers!
María.