default github branch is main

Author: gwatts

config.toml

@@ -79,6 +79,7 @@ version_menu = "Releases"
 
 # Repository configuration (URLs for in-page links to opening issues and suggesting changes)
 github_repo = "https://github.com/gwatts/mostlydocs"
+github_branch = "main"
 # An optional link to a related project repo. For example, the sibling repository where your product code lives.
 github_project_repo = "https://github.com/google/docsy"