update install docs

[oraNod]

This change updates the install docs to reflect the new repository.

[gundalow]

Not related to this change, though can we fix CI

Error:  Chart.yaml: version is required
[INFO] Chart.yaml: icon is recommended
Error:  templates/: validation: chart.metadata.version is required
Error:  : unable to load chart

[oraNod]

Not related to this change, though can we fix CI

Error:  Chart.yaml: version is required
[INFO] Chart.yaml: icon is recommended
Error:  templates/: validation: chart.metadata.version is required
Error:  : unable to load chart

@gundalow Please see the discussion here: #7 (comment)

I agree we need to get that fixed but I'm hoping to let folks from the community step in and resolve it. That check isn't needed for docs changes so - while it's not ideal - I think we can just bypass it for the time being.