Use inclusive terminology (#685)

cookbook/arduino_port_extender.rst

@@ -58,7 +58,7 @@ individual IOs.
           auto ape_component = new ArduinoPortExpander(i2c_component, 0x08);
           return {ape_component};
 
-By default the I²C address is ``0x08`` but you can change it on the Arduino sketch so you can have more slaves
+By default the I²C address is ``0x08`` but you can change it on the Arduino sketch so you can have more devices
 on the same bus.
 
 Now it is time to add the ports.

guides/contributing.rst

@@ -546,7 +546,7 @@ loader. These are:
 - ``CONFLICTS_WITH``: Mark a list of components as conflicting with this integration. If the user
   has one of them in the config, a validation error will be generated.
 
-- ``ESP_PLATFORMS``: Provide a whitelist of ESP types this integration works with.
+- ``ESP_PLATFORMS``: Provide a list of allowed ESP types this integration works with.
 
 Codebase Standards
 ------------------