Permission denied

[julkhami]

git clone git@github.com:tom-doerr/vim_codex.git

returns:

Cloning into 'vim_codex'...
The authenticity of host 'github.com (140.82.121.3)' can't be established.
ECDSA key fingerprint is SHA256:p2QAMXNIC1TJYWeIOttrVc98/R1BUFWu3/LiyKgUfQM.
Are you sure you want to continue connecting (yes/no/[fingerprint])? y
Please type 'yes', 'no' or the fingerprint: yes
Warning: Permanently added 'github.com,140.82.121.3' (ECDSA) to the list of known hosts.

So I just cloned the repo URL. But for the record, this is what the README says to do.

[tom-doerr]

Where do you get Permission denied?

[pylogik]

I get a similar issue. I am trying to install it on Manjaro KDE 21.2.3. After following manual install provided in the README fil, this is is exact error that I received:
Cloning into 'vim_codex'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

[pylogik]

I just got it working. I copied the URL direct from the repo main page. Instead of copying it from the README. In the README the link was 'git clone git@github.com:tom-doerr/vim_codex.git'. However to actually get it working i typed 'https://github.com/tom-doerr/vim_codex'. The only difference seemingly being the '.git' at the end.