austinmroczek 9af39648c3 Add example network_key line (#4133)
Added an example network_key line for configuration.yaml file.

I was having a hard time making it work because I was re-using an existing key from Razberry which was in a slightly different format.  It wasn't until I "created" a new key to see the format.
2017-12-04 00:21:46 +01:00
..
2017-10-31 21:13:37 +00:00