added example test for mash usage. (#404)

Author: TimothyStiles

mash/example_test.go

@@ -0,0 +1,22 @@
+package mash_test
+
+import (
+	"fmt"
+
+	"github.com/TimothyStiles/poly/mash"
+)
+
+func ExampleMash() {
+	fingerprint1 := mash.New(17, 10)
+	fingerprint1.Sketch("ATGCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGA")
+
+	fingerprint2 := mash.New(17, 9)
+	fingerprint2.Sketch("ATGCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGATCGA")
+
+	distance := fingerprint1.Distance(fingerprint2)
+
+	fmt.Println(distance)
+
+	// Output:
+	// 0
+}