Created tutorial for MultiGSEA

[tStehling]

Added a tutorial for MultiGSEA tool.

[anuprulez]

I am unsure if the tutorial should be part of the statistics category. Usually, machine learning tutorials become part of this category in GTN.

[bernt-matthias]

We are fine to move it to any other category, but none seems to fit yet. Me may create a multiomics category?

[shiltemann]

@bernt-matthias the transcriptomics topic has a "multi-omics" subsection, could we add it there for now?

[shiltemann]

@bernt-matthias we can then make "synthetic topic" by adding a "multi-omics" tag to all tutorials analyzing multi-omics data, and define the topic similar to the plants topic: https://github.com/galaxyproject/training-material/blob/main/metadata/plants.yaml

Then the topic will be shown on the main page, since people interested in this tutorial may not naturally go to the proteomics topic, but tutorials themselves can live in multiple topics (as they do now) What do you think?

[bernt-matthias]

This sounds good to me. @tStehling could you move it?

@shiltemann do you have some links for @tStehling on how to assign tags / assign the tutorial to the sub-topic?

[shiltemann]

Thanks a lot for your contribution @tStehling! I've left some comments below, but please let me know if anything is unclear, or if you would like some help doing it :)

[shiltemann]

@shiltemann do you have some links for @tStehling on how to assign tags / assign the tutorial to the sub-topic?

absolutely, @tStehling :

In the proteomics topics, the subsection id is multi-omics so you can add a tutorial to this section by adding the following to the metadata at the top of your tutorial file:

subtopic: multi-omics

And then simply add a tag of the same name. I will use this to create the "multiomics" synthetic topic later. To add a tag, add the following to the metadata of your tutorial

tags: 
  - multi-omics

(and feel free to add more tags in this list as you see fit)

tags are shown as follows under the tutorial name , and can help users identify interesting tutorials

[tStehling]

@shiltemann thank you for the effort.