Fix broken symlink

[sbuvaneshkumar]

I see the link to Helm Chart Repository is broken.
I have replaced the link to point to charts repo.
P.S: I see the same broken link even in https://chartmuseum.com/ site :).

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[sbuvaneshkumar]

I see I cannot add my sign-off via web UI - todogroup/gh-issues#50
Closing this one, and will reopen with sign-off.