start: update command blocks with tabs for Windows

[iesahin]

• Update https://dvc.org/doc/start/data-and-model-access with tabs
• Update https://dvc.org/doc/start/data-and-model-versioning - start: tabs for Windows cmd blocks (Versioning page) #3273
• Update https://dvc.org/doc/start/data-pipelines with tabs
• Update https://dvc.org/doc/start/experiments with tabs
• Update https://dvc.org/doc/start/metrics-parameters-plots with tabs

[jorgeorpinel]

Idk, it kind of depends on the discussions going on in #3273 (about how deep we want to go into being Windows-friendly). WDYT @shcheklein ?

[shcheklein]

@jorgeorpinel I think tabs make the most sense for Windows. Not sure why we should be concerned about using them this way. Or may be I don't understand the context ... could you please clarify?

[jorgeorpinel]

@shcheklein we weren't sure whether it was worth it to make Windows tabs just to change paths such as /tmp which don't work on Windows but we discussed this last retro and decided to DO create those tabs. However making tabs just to change / for \ we decided would be too much. For historical context see #3273 (review) or just review the PR 🙂

[jorgeorpinel]

From #3326 (comment)

Our statistics show we have very few Windows cmd users, anyone who's interested in DVC is using it on WSL probably. I think we can deprioritize this.

Fair point but it's probably still worth it for the Get Started, as we had decided earlier. Maybe it'll help onboard more Windows users this way.