Add missing Kafka JBOD example to the README.md

[scholzj]

Type of change

• Task

Description

The README.md in Kafka examples is missing the JBOD example. This PR adds it there.

Checklist

• Update documentation

[snyk-io]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues
✅	Code Security	0	0	0	0	0 issues

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.68%. Comparing base (7a19f73) to head (cb343ec).

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #13116      +/-   ##
============================================
+ Coverage     80.65%   80.68%   +0.03%     
- Complexity     6628     6631       +3     
============================================
  Files           344      344              
  Lines         22763    22763              
  Branches       3116     3116              
============================================
+ Hits          18360    18367       +7     
+ Misses         3183     3178       -5     
+ Partials       1220     1218       -2     

see 6 files with indirect coverage changes

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