doc: fixes minor typo in ../sensor/triggers.rst

not sure "micro controller" is a typo.
Happy to update it if needed,
or feel free to close this. Thanks for your work!

Signed-off-by: Shan Pen <bricle031@gmail.com>

Author: bricle

doc/hardware/peripherals/sensor/triggers.rst

@@ -5,7 +5,7 @@ Sensor Triggers
 
 :dfn:`Triggers`, enumerated in :c:enum:`sensor_trigger_type`, are sensor
 generated events. Typically sensors allow setting up these events to cause
-digital line signaling for easy capture by a micro controller. The events can
+digital line signaling for easy capture by a microcontroller. The events can
 then commonly be inspected by reading registers to determine which event caused
 the digital line signaling to occur.