The Mermaid Diagrams for Confluence cloud add-on features a GitHub integration with repository explorer UI. This allows users to use Mermaid diagrams stored in their GitHub repositories within their Confluence cloud instance.
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Create add-on Settings Space using the Settings Configuration page.
On the same page, initiate GitHub connection flow (see image below).
Connect your account with the GitHub app and return to Confluence.
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User needs to generate new access key. Go to Settings page and remove current key by clicking on “Disconnect GitHub Account“ button. Then re- connect as before. You will be granted new valid key.