* add optional mermaid shotcode * Use page level configuration for mermaid + use local file Signed-off-by: hossainemruz <hossainemruz@gmail.com> * Fix comment Co-authored-by: Emruz Hossain <hossainemruz@gmail.com> Co-authored-by: Emruz Hossain <emruz@appscode.com>