THe following page indicate the following:
HTTP-based Git access by an installation Installations with permissions on "contents" of a repository, can use their access tokens to authenticate for Git access. The token is used as the HTTP password. git clone https://x-access-token:@github.com/owner/repo.git
<token> part between the
: and the
@ is missing as the
> are not escaped thus is interpreted by browsers as a
<token> tag which is invisible… and make the documentation confusing.