[MWPW-158021] Update Milo README with Nala commands details

[skumar09]

• Update Milo README with Nala commands details

Resolves: MWPW-158021

Test URLs:

• Before: https://main--milo--adobecom.hlx.page/?martech=off
• After: https://nala-docs--milo--adobecom.hlx.page/?martech=off

[github-actions]

This PR does not qualify for the zero-impact label as it touches code outside of the allowed areas. The label is auto applied, do not manually apply the label.

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/?martech=off
🖥️	/?martech=off

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.24%. Comparing base (54c3cc0) to head (748c37e).
Report is 6 commits behind head on stage.

Additional details and impacted files

@@           Coverage Diff           @@
##            stage    #2909   +/-   ##
=======================================
  Coverage   96.24%   96.24%           
=======================================
  Files         236      236           
  Lines       54233    54253   +20     
=======================================
+ Hits        52196    52216   +20     
  Misses       2037     2037           

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