readme outdated?

[glensc]

seems to want some version?

example-apt-repo ☸ test( main) ✖ git show -s 
commit d04f82b0eb83d596148e8e207b6e0db36d403c99 (HEAD -> main, origin/main, origin/HEAD)
Author: Alex Couture-Beil <[email protected]>
Date:   Tue May 18 18:40:24 2021 -0700

    Initial example
    
    Signed-off-by: Alex Couture-Beil <[email protected]>

example-apt-repo ☸ test( main) ➜ earthly --version
earthly version v0.7.20 9600f376026c11d23eb43fc68ad716d6ae4cca2e darwin/arm64; macOS 13.5.2 homebrew

example-apt-repo ☸ test( main) ✖ earthly +create-repo
 Init 🚀
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           buildkitd | Found buildkit daemon as docker container (earthly-buildkitd)

 Build 🔧
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🛰️ Reuse cache between CI runs with Earthly Satellites! 2-20X faster than without cache. Generous free tier https://cloud.earthly.dev
            _unknown *failed* | build target: build main: failed to solve: resolve build context for target +create-repo: No version specified in ./Earthfile
example-apt-repo ☸ test( main) ✖