[chore] #189 standardise list symbol

[thompson-tomo]

Progresses #189

Changes

This ensures that lists use - as opposed to * as per prettier recommendations. Also italics are using _ when in a list item as opposed to *.

Important

Pull requests acceptance are subject to the triage process as described in Issue and PR Triage Management.
PRs that do not follow the guidance above, may be automatically rejected and closed.

Merge requirement checklist

• CONTRIBUTING.md guidelines followed.
• Change log entry added, according to the guidelines in When to add a changelog entry.
  • If your PR does not need a change log, start the PR title with [chore]
• Links to the prototypes or existing instrumentations (when adding or changing conventions)

[github-actions]

This PR contains changes to area(s) that do not have an active SIG/project and will be auto-closed:

Such changes may be rejected or put on hold until a new SIG/project is established.

Please refer to the Semantic Convention Areas
document to see the current active SIGs and also to learn how to kick start a new one.

[thompson-tomo]

@joaopgrassi can you also re-open this one. Not sure why it was closed.

[joaopgrassi]

re-opening
Not sure what's up. Reopen button is disabled, refreshed the page, was enabled but didn't re-open the pr. GH is drunk :D

[thompson-tomo]

hmm, have opened a new one as I thought it might be due to the force push. Can you re-open #3013 which is the replacement pr.