[LINC Documentation] Setup of s3invsync instructions

[aaronkanzer]

Cc @kabilar -- relates to offboarding doc -- simple stable script with a mini-read-me to run

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.78%. Comparing base (2d9e853) to head (71ccf4e).
Report is 64 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (2d9e853) and HEAD (71ccf4e). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (2d9e853)	HEAD (71ccf4e)
	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #193      +/-   ##
==========================================
- Coverage   59.95%   54.78%   -5.17%     
==========================================
  Files          19       21       +2     
  Lines        2412     2561     +149     
==========================================
- Hits         1446     1403      -43     
- Misses        966     1158     +192     

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