docs: reference buildx as a requirement for docker builds

Signed-off-by: Christopher M. Luciano <cmluciano@us.ibm.com>
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Christopher M. Luciano 2020-02-13 14:19:39 -05:00
parent 4a33b1e163
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@ -19,6 +19,8 @@ cd ingress-nginx
### Initial developer environment build
Ensure docker experimental features option is enabled for [buildx](https://docs.docker.com/buildx/working-with-buildx/)
```
$ make dev-env
```