using git locally

[mick crane <mick.crane@gmail.com>]

hello,
Because I am always making mistakes I thought, if it's not too hard, to 
see about using git locally.
I made a git repository for project following destructions
https://www.digitalocean.com/community/tutorials/how-to-use-git-effectively
but I'm having bother accessing it remotely.
I can ssh from one pc to another using keys with key phrase.
"ssh mick@server"
but
"git remote add origin ssh://mick@server/home/mick/git/camera"
and many variations I get.
fatal: not a git repository (or any of the parent directories): .git
I'm not really understanding the difference between "ssh" and "ssh://" 
except "ssh" works in terminal and "ssh://" doesn't.
Is it ssh:// that is wrong or I've failed to get the syntax right for 
git ?
mick
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Key ID    4BFEBB31