* clarify enabling secret scanning will scan all branches, all history * Update content/code-security/secret-security/configuring-secret-scanning-for-your-repositories.md * Update content/code-security/secret-security/about-secret-scanning.md Co-authored-by: Felicity Chapman <felicitymay@github.com> Co-authored-by: mc <42146119+mchammer01@users.noreply.github.com>