Improve test descriptions on Secret handshake
Improve test descriptions on Secret handshake

Use hexadecimal numbers to relate test descriptions and test
implementations

arthurchipdean/xecmascript,exercism/xecmascript,exercism/xecmascript,tejasbubane/xecmascript,MattH-be/ecmascript,tejasbubane/xecmascript,arthurchipdean/xecmascript,MattH-be/ecmascript