GBIF data processing intro page

[ahahn-gbif]

Link already existing documentation into a version sufficient for the first release:

• [x] network components overview graphic - from technical support hour?
• [x] data processing summary page - [ ] links to available tools (?): IPT; validator; other?

[ahahn-gbif]

notes to self:

• https://tech-docs.gbif-dev.org/en/data-processing/ (ui)
• https://github.com/gbif/tech-docs/tree/main/en (editing entry to data processing)
• https://github.com/gbif/tech-docs
• https://github.com/gbif/tech-docs/tree/main (instructions)

[ahahn-gbif]

Tools question moved to separate issue (#29)