Update README.md

Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
aantron · Dec 26, 2023 · 2cebd66 · 2cebd66
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commit 2cebd66
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diff --git a/example/z-docker-esy/README.md b/example/z-docker-esy/README.md
@@ -78,7 +78,7 @@ $ ssh root@my-droplet
 [Install Docker](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-20-04):
 
 ```
-$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/docker.gpg
 $ add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
 $ apt update
 $ apt install docker-ce -y