feat: Add option for inputing template

Now a template file is required to run the cli command. That gives the
user an option to provide its own template file.

An default will be provided later.

ref: Remove quicktemplate

This is done in preparation to use text-html/template. This will allow
the user to input their own template file

feat: Add install rule

ref: Move to pflag

Don't like default single `-` param.

feat: Add link to the commit for a given format

ref: Update markdown template

feat: Add initial template renderer for markdown

Initial commit