Improve README documentation clarity

[amahi1568]

This pull request improves the clarity of the README documentation by refining wording.
No functional or behavioral changes are introduced.

Checklist:

• This pull request addresses just one issue and does not include unrelated changes.
• Each commit has a meaningful subject and body.
• Unit tests were added or updated where applicable (not applicable for documentation-only changes).
• mvn verify was run (not required for documentation-only changes).
• Core ITs were run (not applicable).

Licensing:

• I hereby declare this contribution to be licensed under the Apache License Version 2.0, January 2004.
• In any other case, an Apache Individual Contributor License Agreement (ICLA) has been filed.

[slawekjaranowski]

we use such sentence in many place .... I would like to first discuss, confirm it on ML
Next we should change it globally

[elharo]

We've discussed it before. I'd prefer not to let the perfect be the enemy of the good. Fixing one awkward, unclear doc out of 100 is better than leaving it alone while we figure out how to fix the other 99. Since we're not a mono-repo we'll never fix them all at the same time anyway.