*: Extract into package (#13)

* *: Extract into package

Extracts all of the highlight code into a package, so it can be consumed
and imported by other projects.

Thanks for this awesome tool!

* Update README.md

* Fix URL not recognized
Improve isKeyValue function recognizing whether is valid yaml k/v or just a string with a colon

* Releases linked in the README

* temp and zip files

* deals with multiple :

* fix, missing :

* Update README.md

* Update README.md

* Update README.md

Co-authored-by: Andrea Zorzetto <andrea@thatpersonalmail.com>
Co-authored-by: Andrea Zorzetto <andrea.zorzetto@ecs-digital.co.uk>

highlight/highlight.go

@@ -76,7 +76,6 @@ func Highlight(r io.Reader) (string, error) {
 			if l.isUrl() {
 				// Value is a URL
 				buf.WriteString(url(l))
-
 			} else if l.isComment() {
 				// This line is a comment
 				buf.WriteString(comment(l))
@@ -127,7 +126,6 @@ func invalidLine(l yamlLine) string {
 func multiline(l yamlLine) string {
 	return fmt.Sprintf("%v\n", Gray(20-1, l.raw))
 }
-
 func url(l yamlLine) string {
 	return fmt.Sprintf("%v\n", Yellow(l.raw))
 }