Clarify documentation of `reset` command

The old wording 'sensor' for the whole controller can be
misleading.

README.md

@@ -85,7 +85,7 @@ In Arduino IDE *Serial Monitor* or PlatformIO *Monitor*, type `help` + <kbd>Ente
 * `lora 300` (Sets LoRaWAN sending interval, in s).
 * `mqtt 60` (Sets MQTT sending interval, in s).
 * `night_mode` (Toggles night mode on/off).
-* `reset` (Restarts the sensor).
+* `reset` (Restarts the ESP).
 * `reset_scd` (Resets SCD30).
 * `send_local_ip` (Sends local IP and SSID via MQTT. Can be useful to find sensor).
 * `set_time 1618829570` (Sets time to the given UNIX time).

ampel-firmware/util.cpp

@@ -85,7 +85,7 @@ Ampel::Ampel() :
   sensor_console::defineCommand("free", Ampel::showFreeSpace, F("(Displays available heap space)"));
   sensor_console::defineCommand("reset", []() {
     ESP.restart();
-  }, F("(Restarts the sensor)"));
+  }, F("(Restarts the ESP)"));
 }
 
 Ampel ampel;