github: PGP key usage flags do not allow signing

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I've used my OpenPGP key to sign a git commit, but it shows up as "Unverified" on github: https://github.com/cweiske/jsonmapper/commits/master

The usage flags for the key that signed this don't allow signing.

GPG key ID: 14C85A0824EAF823

The github gpg signature docs say nothing about that error.

So my questions:

  1. How do I read those flags?
  2. How can I change my key to allow code signing?
1 Answers
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