A more general entry point for sequencing data

**What topic do you wish to add?**
A domain overview page discussing general data management considerations regarding sequencing is currently missing.
Some of this is presently reported in "marine metagenomics" and "plant sciences" (e.g. the MIxS checklist or deposition on EVA).
Such information can be very relevant to other users working on sequencing that might not be related to plants or marine organisms.
I think having this "entry point" for sequencing data will facilitate the user's journey through RDMkit.

**Are there existing pages in the RDMkit website related to the requested page?**
https://rdmkit.elixir-europe.org/marine_metagenomics
https://rdmkit.elixir-europe.org/plant_sciences

**Context**
This was raised in the context of a [BioMedData](https://elixir.no/organization/biomeddata) hackathon, in a session aimed at assessing possible gaps between RDMkit and recommendations from Norwegian research infrastructures.