Fix invalid tcp listener in the Readme file

[nipunayf]

Purpose

$subject.

Checklist

• Linked to an issue
• Updated the specification
• Updated the changelog
• Added tests
• Checked native-image compatibility

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (d627514) 82.80% compared to head (5dc1ba9) 82.80%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1099   +/-   ##
=========================================
  Coverage     82.80%   82.80%           
  Complexity      208      208           
=========================================
  Files            24       24           
  Lines           820      820           
  Branches         91       91           
=========================================
  Hits            679      679           
  Misses          100      100           
  Partials         41       41           

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