Display pipeline and task description on pipelinerun details

[valAndre07]

Feature request

Display pipeline and task description on pipelinerun details.

Use case

[Company needs]
We currently have a pipelines catalog stored in a github repo, describing Pipeline, Task, and StepAction.
One team maintains this repo.
This pipelines catalog is used by other teams with PipelineRuns.
Many pipelines can be picked from our pipelines catalog, but it is not easy to know directly on the dashboard, when they run the pipeline, what the pipelines do.
To improve the user experience/knowledge, it will be great to display pipeline and task description when displaying PipelineRun details page, using fields already available from the API.

I tried the new UI but that doesn't solve the problem.

Additional context

For example, display Pipeline and Task description from our pipelines catalog here will be appreciated :

[AlanGreene]

Copying open questions from the comment on the original PR:
#4435 (comment)

---

Before implementing this feature we'd like to understand how users are actually using these fields in practice, what tasks they're unable to complete or are less efficient due to their absence from the UI, or how they would use them if they're surfaced somewhere in the UI. This can then inform how they're processed, where they're best placed, whether they need to be permanently visible, etc.

Can you share some examples of how you're using these today or how you envision using them in future? The types of content they contain, actions users take based on the content, scenarios where they're most useful, etc. Concrete examples are best if possible.

[valAndre07]

Thanks @AlanGreene, Do you need any more additional information?

[AlanGreene]

Yes it would be great if you could share some concrete examples of use cases, the types of content, what users would do with it, etc.

[valAndre07]

@AlanGreene On our side (devexp team), users (our company's developers) use the pipelines we provide them to accomplish several things: build/push Docker images, quality tests, GitHub releases, etc.
These pipelines are developed by us (devexp team), and stored in a pipeline catalog (GitHub repo). Developers then instantiate pipelineruns referencing the pipelines in our catalog.
They therefore don't know the implementation of the pipeline and the tasks themselves. They simply use them and use params to configure it.
We have many pipelines in our catalog. These pipelines can contain up to 15 tasks, containing technical tasks that the developer don't know, but also running part of code they want to execute (for example all quality steps are executing code that the developer override).
It would therefore be interesting for us to be able to add a description to our pipeline catalog so that developers who use these pipelines via pipelineruns can understand what the pipeline and the different tasks do when they view the dashboard. The displayName is a little too short to provide a complete description of what is being done. This would allow them to improve their understanding and better identify where they are in the pipeline when it fails, for example, to better communicate with us.

In the future, to continue in this process of improving understanding, I would like to add displayName for steps. To do that, I opened a PR on tektoncd/pipeline repo : tektoncd/pipeline#9033