feat(matter): simple type correction in commentary

Author: SuGlider

libraries/Matter/examples/MatterMinimum/MatterMinimum.ino

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 /*
- * This example ha the smallest code that will create a Matter Device which can be
+ * This example is the smallest code that will create a Matter Device which can be
  * commissioned and controlled from a Matter Environment APP.
  * It doesn't control any light, but the ESP32 will send debug messages indicating the Matter activity.
  * Therefore, turning DEBUG Level may be useful to follow Matter Accessory and Controller messages.