[OTA] Update the READMEs related to software version and image header#16690

Merged

carol-apple merged 1 commit intoproject-chip:masterfrom carol-apple:ota_readme_version

Mar 26, 2022

+124-33

Commits on Mar 26, 2022

[OTA] Update the READMEs related to software version and image header
carol-apple
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