Document posts.ExtractTitle func

posts/parse.go

@@ -4,6 +4,8 @@ import (
 	"strings"
 )
 
+// ExtractTitle takes the given raw post text and returns a title, if explicitly
+// provided, and a body.
 func ExtractTitle(content string) (title string, body string) {
 	if hashIndex := strings.Index(content, "# "); hashIndex == 0 {
 		eol := strings.IndexRune(content, '\n')