Grammatical edits for clarity (#180)

Author: joeybab3

examples/Basics/Sleep/Sleep.ino

@@ -22,20 +22,20 @@ void loop() {
 
   M5.Lcd.printf("Go lightSleep (5s or press buttonA wake up)\n");
   delay(2500);
-  // call this fun, power btn will Invalid
-  // Restore power btn please call M5.Power.setPowerBoostKeepOn(false)
+  // Calling this function will disable the power button
+  // To restore power btn please call M5.Power.setPowerBoostKeepOn(false)
   M5.Power.lightSleep(SLEEP_SEC(5));
 
   M5.Lcd.printf("Go lightSleep (press buttonA wake up)\n");
   delay(2500);
-  // call this fun, power btn will Invalid
-  // Restore power btn please call M5.Power.setPowerBoostKeepOn(false)
+  // Calling this function will disable the power button
+  // To restore power btn please call M5.Power.setPowerBoostKeepOn(false)
   M5.Power.lightSleep(0);
 
   M5.Lcd.printf("resume.\n\nGo deepSleep (press buttonA wake up) ");
   delay(2500);
-  // call this fun, power btn will Invalid
-  // Restore power btn please call M5.Power.setPowerBoostKeepOn(false)
+  // Calling this function will disable the power button
+  // To restore power btn please call M5.Power.setPowerBoostKeepOn(false)
   M5.Power.deepSleep(0);
 
 }