add app channel address flag for run

[mukundansundar]

Description

Please explain the changes you've made

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• [ ] Code compiles correctly
• [ ] Created/updated tests
• [ ] Extended the documentation

[codecov[bot]]

Codecov Report

Merging #1283 (060f159) into release-1.11 (c65d816) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 060f159 differs from pull request most recent head 83ea992. Consider uploading reports for the commit 83ea992 to get more accurate results

@@              Coverage Diff              @@
##           release-1.11    #1283   +/-   ##
=============================================
  Coverage         26.87%   26.87%           
=============================================
  Files                39       39           
  Lines              3873     3873           
=============================================
  Hits               1041     1041           
  Misses             2758     2758           
  Partials             74       74           

Impacted Files	Coverage Δ
pkg/standalone/run.go	0.00% <ø> (ø)

[yaron2]

Please also update the README file with an example.

[mukundansundar]

Please also update the README file with an example.

I am also writing an E2E for the same ... will do it

[mukundansundar]

Please also update the README file with an example.

I am also writing an E2E for the same ... will do it

Added as part of usage help.