4.0.0

Fixed

• adr-template.md: Re-add quotes around chosen option name.
• adr-template-minimal.md: Place holder in one line.
• adr-template-bare.md: Keep fixed template text as normal markdown (and not as comment).
• adr-template-bare.md and adr-template-bare-minimal.md: Always use <!-- … -> als place holder instead of {…}.

See https://github.com/adr/madr/tree/4.0.0/template for the list of all templates.