guide: Experiment Management (phase 2)

[jorgeorpinel]

Extracted from #2548

Review/consolidate these:

• index and Overview pages - should be about bigger picture, general workflow diagrams, benefits, etc. Help users better navigate in the section structure (e.g. map subsections to the workflow).
  • Index: Do we need Organization patterns and Run-cache sections?
• guide: Naming experiments section or page #3106
• guide: Running Experiments improvements #2768
• & mention that untracked files can slow the exp commands {BECAUSE ...}
• guide: "Comparing Experiments" improvements #2995
• guide: concerns with "Persisting" experiments #2960
• Longer exp init section or its own guide (currently in the ref.) Perhaps even reuse/rename Exps Overview.
  See possible structure + other possible pending questions.
• Reorganize Sharing Experiments completely: it's like a cmd ref. at the moment (too many linear sections).
  See guide: revisit Exp Sharing #2908 (comment)
• guide: "Cleaning-up Experiments" improvements #2777
• guide: revisit Checkpoints guide(s?) #2769
• and/or guide: all the ways to use checkpoints #2432
• ref: exp run --set-param with templating #2313 (could be included above)
• Use the term "experiment tracking" more? We currently focus on "experiment management" and throw "tracking" here and there but never use the full phrase, which is a well-known concept in the field (so good for SEO) and relates to many of our guides, probably.

  From guide: concerns with "Persisting" experiments #2960 (comment)
  See also guide: DVC Experiments Overview #2909 (review)

• Create a diagram for different exp workflows? (at least the basic one)
  See guide: DVC Experiments Overview #2909 (review)
  and guide: DVC Experiments Overview #2909 (review).
• exp: baseline -> parent [term] #3432
• exp: CI runs require unshallow clone (fetch-depth: >1) #3416 ?