JSON config documentation missing

[DO4AF]

Is your feature request related to a problem? Please describe.
There is no documentation available for the config.json file
e.g. it is not clear what is the exact meaning for those parameters
"turn_min": 25,
"slow_rate": 300,
"slow_speed": 10,
"fast_rate": 60,
"fast_speed": 100,
"min_tx_dist": 100,
"min_bcn": 5

Describe the solution you'd like
Either comments within json file explaining the config items or updated Wiki / README.md

Describe alternatives you've considered
I could try to check the source code to figure out what each config item means. If that is required i would add the documentation then and file a PR

Additional context

[jclifford73]

This link might help:
https://github.com/richonguzman/LoRa_APRS_Tracker/wiki/2.-Tracker-Configuration