docs: Remove call to groupadd

Adding the user to the docker group using groupadd(8) may not be a good idea from a security perspective, so continue to use sudo(8) in all docs to access docker. Fixes #513. Signed-off-by: James O. D. Hunt <[email protected]>
clearcontainers · Sep 4, 2017 · c252ad9 · c252ad9
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diff --git a/docs/fedora-installation-guide.md b/docs/fedora-installation-guide.md
@@ -9,7 +9,6 @@ This step is only required in case Docker is not installed on the system.
 $ sudo dnf -y install dnf-plugins-core
 $ sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo
 $ sudo dnf makecache fast
-$ sudo groupadd docker
 $ sudo dnf -y install docker-ce
 ```