Gitbook files and wake word

A newbie been trying to change wake word to christopher and having problems. I noticed on gitbook 2 files called
I was hoping these files might make it easier to change rhe wake word to christopher. If so how do I access them and load them onto mycroft?
Any advice appreciated.
Step by step instructions please.

Can no one help with my request for instructions re github files. See above

You might have more luck at: