removed wrong ns from readme

[astelmashenko]

Fixes #627

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 35.53%. Comparing base (eb24a6f) to head (c3b9708).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #628   +/-   ##
=======================================
  Coverage   35.53%   35.53%           
=======================================
  Files          45       45           
  Lines        2721     2721           
=======================================
  Hits          967      967           
  Misses       1689     1689           
  Partials       65       65           

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[astelmashenko]

/assign @Cali0707

[Cali0707]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: astelmashenko, Cali0707

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