Docs are not deploying

[DilumAluthge]

See https://github.com/chriselrod/LoopVectorization.jl/runs/1484157795

┌ Info: Deployment criteria for deploying devbranch build from GitHub Actions:
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│ - ✔ ENV["GITHUB_REPOSITORY"]="chriselrod/LoopVectorization.jl" occurs in repo="github.com/chriselrod/LoopVectorization.jl"
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│ - ✔ ENV["GITHUB_EVENT_NAME"]="push" is "push"
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│ - ✔ ENV["GITHUB_REF"] matches devbranch="master"
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│ - ✔ ENV["GITHUB_ACTOR"] exists
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│ - ✔ ENV["DOCUMENTER_KEY"] exists exists
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└ Deploying: ✔
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Initialized empty Git repository in /tmp/jl_1m3HlR/.git/
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Failed to add the RSA host key for IP address '140.82.114.4' to the list of known hosts (/home/runner/.ssh/known_hosts).
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Load key "/home/runner/work/LoopVectorization.jl/LoopVectorization.jl/docs/.documenter": invalid format
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git@github.com: Permission denied (publickey).
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fatal: Could not read from remote repository.
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Please make sure you have the correct access rights
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and the repository exists.
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┌ Error: Git failed to fetch git@github.com:chriselrod/LoopVectorization.jl
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│ This can be caused by a DOCUMENTER_KEY variable that is not correctly set up.
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│ Make sure that the environment variable is properly set up as a Base64-encoded string
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│ of the SSH private key. You may need to re-generate the keys with DocumenterTools.
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└ @ Documenter ~/.julia/packages/Documenter/PLD7m/src/Documenter.jl:502

[chriselrod]

I followed the instructions here. I'll make a commit and push soon to see if things work.

[chriselrod]

Thanks, docs have now deployed successfully.