Fix legacy version in DigitalOcean Kubernetes setup doc #1788
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In the Kubernetes on Digital Ocean doc page, there are two minor issues.
The
![image](https://user-images.githubusercontent.com/1064036/94336043-9a33e380-ffa5-11ea-8ad4-73cadd9aeffd.png)
![image](https://user-images.githubusercontent.com/1064036/94336045-9c963d80-ffa5-11ea-96c5-8cf165d07680.png)
doctl k8s cluster create
command is using an outdated Kubernetes version. Using1.12.1-do.2
throws a 422 validation error.When creating a Kubernetes cluster through Digital Ocean's dashboard, only versions 1.16.14 and up seem to be supported.
![image](https://user-images.githubusercontent.com/1064036/94336034-84262300-ffa5-11ea-8e23-a1a0d386f86e.png)
I've replaced the legacy version with latest
1.18.8-do.0
.The
doctl k8s cluster create
command is also missing a double quote at the end. I've added the missing double quote.Confirmed by testing in Ubuntu 20.04:
![image](https://user-images.githubusercontent.com/1064036/94336137-5097c880-ffa6-11ea-8584-b714a0eff4a3.png)