Document apiVersion field

Added in https://github.com/kubernetes/helm/issues/1264
7 years ago · 4ce35363d4
parent ad714fe704
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--- a/docs/charts.md
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 The `Chart.yaml` file is required for a chart. It contains the following fields:

 ```yaml
+apiVersion: The chart API version, always "v1" (required)
 name: The name of the chart (required)
 version: A SemVer 2 version (required)
 kubeVersion: A SemVer range of compatible Kubernetes versions (optional)