For VDDK help text - replace the example with a format - step 2

[sgratch]

Reference: https://issues.redhat.com/browse/MTV-1552
A follow up of #1389

Rephrasing the text messages based on doc and UX review.

Few screenshots

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
16.7% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.16%. Comparing base (13484d0) to head (6de5690).
Report is 124 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1390      +/-   ##
==========================================
- Coverage   36.81%   36.16%   -0.65%     
==========================================
  Files         158      158              
  Lines        2548     2577      +29     
  Branches      599      614      +15     
==========================================
- Hits          938      932       -6     
- Misses       1428     1450      +22     
- Partials      182      195      +13     

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