documentation: remove references to wifi check interval

wifi check interval is no longer used, hardcoded to check every 50 seconds. Removed references to wifi_check_interval in documentation

Author: jef41

README.md

@@ -77,7 +77,6 @@ Custom configurations can be used by creating a file `config.json` in the root d
 |`ssid` (str) | SSID for your wifi newtork | None | [Example config](examples/wifi.md) |
 |`password` (str) | password for your wifi newtork | None | [Example config](examples/wifi.md) |
 |`country_code` (str) | ISO 3166-1 alpha-2 character country code for wifi | `None` | [Example config](examples/wifi.md) |
-|`wifi_check_interval` (int) | Check there is a working internet conenction every n seconds | `3600` | [Example config](examples/wifi.md) |
 |`debug_log` (list) | How many kb in each and how many debug backup files to keep | `[20, 1]` |  |
 |`display_type` (str) | currently only option is "DISPLAY_PICO_DISPLAY" | None | [Example config](examples/display.md) |
 |`display_update_secs` (float) | how frequently to cycle content of display screen | `5` | [Example config](examples/display.md) |

examples/wifi.md

@@ -16,4 +16,4 @@ To configure a wifi conenction a config.json example looks like:
 
 `country_code` a 2 character string representing your ISO 3166-1 alpha-2 character country code. This is not mandatory, but may aid getting the most appropriate channel or a more siwft or reliable connection.
 
-`wifi_check_interval` expressed in seconds, at about this interval (randomised beween 80% – 120%) the bridge will attempt a DNS lookup of Google (8.8.8.8), this is a rudimentary check that we can connect to the internet (or at least a router). If this fails the tilt-bridge will try to reconnect to wifi. If `check_interval` is set to 0 then the wifi checks will be disabled. 
+<!-- `wifi_check_interval` expressed in seconds, at about this interval (randomised beween 80% &ndash; 120%) the bridge will attempt a DNS lookup of Google (8.8.8.8), this is a rudimentary check that we can connect to the internet (or at least a router). If this fails the tilt-bridge will try to reconnect to wifi. If `check_interval` is set to 0 then the wifi checks will be disabled. --->