Include multi conf and change address for TB6612FNG (#3267)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

components/grove_tb6612fng.rst

@@ -14,28 +14,10 @@ At the current stage of implementation only DC motor is implemented.
 
 .. code-block:: yaml
 
-    # Example configuration grove motor
+    # Example configuration
     grove_tb6612fng:
+      - address: 0x14
         id: test_motor
-        name: motor_outside
-        address: 0x14
-
-    # Example switch trigger
-    switch:
-      - platform: template
-        name: open_vent
-        id: open_vent
-        optimistic: True
-        on_turn_on:
-          then:
-            - grove_tb6612fng.run:
-                channel: 1
-                speed: 255
-                direction: BACKWARD
-                id: test_motor
-            - delay: 10s
-            - switch.turn_on: stop_motor
-            - switch.turn_off:  open_vent
 
 Configuration variables:
 ************************
@@ -43,7 +25,6 @@ Configuration variables:
 - **id** (**Required**, :ref:`config-id`): The id to use for this TB6612FNG component.
 - **address** (*Optional*, int): The I²C address of the driver.
   Defaults to ``0x14``.
-- **name** (**Required**, boolean): The name of the component
 
 .. grove_tb6612fng.run:
 
@@ -124,6 +105,21 @@ Set the board to be awake, every esphome is restarted the default mode is set to
         - grove_tb6612fng.no_standby
             id: test_motor
 
+.. grove_tb6612fng.change_address:
+
+``grove_tb6612fng.change_address`` Action
+-----------------------------------------
+
+If you require connecting multiple boards at once, the address can be changed using this action. The address can be changed to a value in the range of ``0x01 - 0x7f`` inclusive.
+
+.. code-block:: yaml
+
+    on_...:
+      then:
+        - grove_tb6612fng.change_address:
+            address: 0x15
+            id: test_motor
+
 
 See Also
 --------