Tech writing review

[olgahryniuk]

Please consider the reviewed version of the onboarding guide.

This PR includes grammar and IOG style guide edits.

Pre-submit checklist

• Branch
  • Tests are provided (if possible)
  • Crates versions are updated (if relevant)
  • Commit sequence broadly makes sense
  • Key commits have useful messages
• PR
  • No clippy warnings in the CI
  • Self-reviewed the diff
  • Useful pull request description
  • Reviewer requested
• Documentation
  • Update README file (if relevant)
  • Update documentation website (if relevant)
  • Add dev blog post (if relevant)

Comments

Issue(s)

Relates to #YYY or Closes #YYY

[jpraynaud]

Thanks for the review!

Could you do the following steps:

• Fix the few modifications below.
• Then, replace the docs/root/manual/getting-started/images/spo-onboarding-timeline.png with the one I sent you.
• Then, replace the docs/versioned_docs/version-maintained/manual/getting-started/images/spo-onboarding-timeline.png with the new docs/root/manual/getting-started/images/spo-onboarding-timeline.png.
• Then, replace the docs/versioned_docs/version-maintained/manual/getting-started/SPO-on-boarding-guide.md with the new docs/root/manual/getting-started/SPO-on-boarding-guide.md.

[jpraynaud]

LGTM 👍