* enabled mermaid by default
* implemented logic to use internal oder cdn mermaid
* added english documentation
* added french translation for the mermaid options
* Removed useless test print
* Hugo does not use upper case letters in params
* fixed false sample link
* improved mermaid pages
* fixed always load mermaid if no frontmatter specified
* fixed mermaid samples
* removed obsolete css files
* changed default version of mermaid cdn
* renamed mermaidURL to customMermaidURL and removed css link
* improved mermaid configuration description
Co-authored-by: Arthur Ferdinand Lindner <Arthur-Ferdinand.Lindner@Telekom.de>
Co-authored-by: Arthur Ferdinand Lindner <arthur.lindner@outlook.de>