Document "Experiments" feature

[johnaohara]

Discussed in https://github.com/Hyperfoil/Horreum/discussions/565

^{Originally posted by dupliaka June 13, 2023} Hello,

I was playing with "Experiments" feature to compare dataset provided by experimental branch of application with main as a baseline. Looking to the code base - after setup experiment labels - it should trigger ExperimentModal. It seems to me that this modal should run the comparison but I didn't find the way how may I trigger this modal in the guide https://horreum.hyperfoil.io/.

Also when I use labels I miss Jenkins plugin schema urn:horreum:jenkins-plugin:0.1that could be helpfull to filter datasets.

[whitingjr]

@johnaohara Running Experiments documentation has been added in #1132. Is that sufficient to resolve this issue or were you intending more detailed instructions on set-up and configuration options ?