Generate YAML doc

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

docs/reference/docker_buildx_du.yaml

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+command: docker buildx du
+short: Disk usage
+long: Disk usage
+usage: docker buildx du
+pname: docker buildx
+plink: docker_buildx.yaml
+options:
+- option: filter
+  value_type: filter
+  description: Provide filter values
+  deprecated: false
+  experimental: false
+  experimentalcli: false
+  kubernetes: false
+  swarm: false
+- option: verbose
+  value_type: bool
+  default_value: "false"
+  description: Provide a more verbose output
+  deprecated: false
+  experimental: false
+  experimentalcli: false
+  kubernetes: false
+  swarm: false
+inherited_options:
+- option: builder
+  value_type: string
+  description: Override the configured builder instance
+  deprecated: false
+  experimental: false
+  experimentalcli: false
+  kubernetes: false
+  swarm: false
+deprecated: false
+experimental: false
+experimentalcli: false
+kubernetes: false
+swarm: false
+