Fix chart readme

General MR

Summary

Resolve the chart/README.md not reflecting upstream

Relevant logs/screenshots

see compare here: https://repo1.dso.mil/big-bang/product/packages/harbor/-/compare/1.14.0-bb.0...fix-chart-readme?from_project_id=3964&straight=false#8ec9a00bfd09b3190ac6b22251dbb1aa95a0579d_1_1

Linked Issue

big-bang/bigbang!4186 (closed)

Upgrade Notices

N/A