Make godoc happy, and add extra comments.

export/human-readable.go

@@ -5,6 +5,7 @@ import (
 	"log"
 )
 
+// Print solutions into a human friendly format for in the console.
 func (export *Export) PrintSolutions() {
 	for solutionIndex, solution := range export.Controller.Solutions {
 		log.Printf("\nSolution #%d:", solutionIndex+1)

export/types.go

@@ -2,6 +2,7 @@ package export
 
 import "gitea.ligthert.net/golang/sudoku-funpark/controller"
 
+// A simple inteface to export found solutions in different formats.
 type Export struct {
 	Controller *controller.Controller
 }