docs: DEV-2680 Editorial pass on LS docs suite

[anithamuthu2022]

This PR has the following tasks:

1. Added Enterprise badge using a simple format
2. Added admonitions
3. Reviewed and fixed typos
4. Added table and figure captions
5. Edited language and style of writing/formatting

[swarmia[bot]]

✅  Linked to Story DEV-2680 · docs: Review and Fix docs bugs for Label Studio
➡️  Part of Epic DEV-1309 · Epic full of improvements for the documentation site/ LS website

[anithamuthu2022]

@makseq this PR is ready for your review/approval. Thank you!

[makseq]

I see some errors when run hexo server, please check it carefully:

[anithamuthu2022]

@makseq this PR is ready for review/ approval.

[anithamuthu2022]

[anithamuthu2022]

I see some errors when run hexo server, please check it carefully:

I could not figure out these error fixes since it is not related to the changes I made here( may be)?