Gyro sensor topics (#311)

docs/SUMMARY.md

@@ -68,3 +68,7 @@
         * [speed](/reference/motors/motor/speed)
         * [clear counts](/reference/motors/motor/clear-counts)
         * [stop all motors](/reference/motors/stop-all-motors)
+    * [Sensors](/reference/sensors)
+        * [angle](/reference/sensors/gyro/angle)
+        * [rate](/reference/sensors/gyro/rate)
+        * [reset](/reference/sensors/gyro/reset)

docs/reference.md

@@ -2,12 +2,14 @@
 
 ```namespaces
 brick.showMood(moods.sleeping);
-motors.stopAllMotors()
+sensors.color(null);
+motors.stopAllMotors();
 ```
 
 ## See Also
 
 [brick](/reference/brick),
+[sensors](/reference/sensors),
 [motors](/reference/motors),
 [touch sensor](/reference/sensors/touch-sensor),
 [color sensor](/reference/sensors/color-sensor)

docs/reference/sensors.md

@@ -0,0 +1,9 @@
+# Sensors
+
+## Gyro
+
+```cards
+sensors.gyro1.angle();
+sensors.gyro1.rate();
+sensors.gyro1.reset();
+```