treat files with absolute path when no output folder is set (#6)
replace the full sed capabilities by simpler regex replaces
bump goldmark to v1.7.11
Add sed transformations on md input and HTML output
append icon paramter for the favicon
adjust regular expression for .md links
default template as external file and update of HOWTO
set stdin as defaumt input if there is piped data
change release names
bump goldmark to 1.7.8