Clean up description in SHA256 example

examples/sha256-hashes/sha256-hashes.go

@@ -28,9 +28,6 @@ func main() {
 	// to an existing byte slice: it usually isn't needed.
 	bs := h.Sum(nil)
 
-	// SHA256 values are often printed in hex, for example
-	// in git commits. Use the `%x` format verb to convert
-	// a hash results to a hex string.
 	fmt.Println(s)
 	fmt.Printf("%x\n", bs)
 }

examples/sha256-hashes/sha256-hashes.hash

@@ -1,2 +1,2 @@
-21f16c864c11958f29949c491a9684bcb885831f
-jIQtrUxWLvq
+66d0faf25cd171218b0fc0fc341836a4f0069932
+IHM1lZVm_Jm