Add initial 'help' page

validation/rules.go

@@ -11,7 +11,7 @@ type rule struct {
 	divisible uint8
 }
 
-var formatRules = map[string]rule{
+var FormatRules = map[string]rule{
 
 	"2of5": {
 		minLength: 2,

validation/validate.go

@@ -3,7 +3,7 @@ package validation
 import "fmt"
 
 func Validate(input string, format string) bool {
-	rule, exists := formatRules[format]
+	rule, exists := FormatRules[format]
 	if !exists {
 		fmt.Printf("Error: No rule found for format '%s'\n", format)
 		return false