fix typo

Author: hathach

libraries/Bluefruit52Lib/examples/Peripheral/hid_keyboard/hid_keyboard.ino

@@ -63,7 +63,7 @@ void setupAdv(void)
   Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
   Bluefruit.Advertising.addTxPower();
 
-  Bluefruit.Advertising.addApperance(BLE_APPEARANCE_HID_KEYBOARD);
+  Bluefruit.Advertising.addAppearance(BLE_APPEARANCE_HID_KEYBOARD);
 
   // Include BLE HID service
   Bluefruit.Advertising.addService(blehid);

libraries/Bluefruit52Lib/examples/Peripheral/hid_mouse/hid_mouse.ino

@@ -56,7 +56,7 @@ void setupAdv(void)
   Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
   Bluefruit.Advertising.addTxPower();
 
-  Bluefruit.Advertising.addApperance(BLE_APPEARANCE_HID_MOUSE);
+  Bluefruit.Advertising.addAppearance(BLE_APPEARANCE_HID_MOUSE);
 
   // Include BLE HID service
   Bluefruit.Advertising.addService(blehid);

libraries/Bluefruit52Lib/keywords.txt

@@ -107,7 +107,7 @@ addData	KEYWORD2
 addFlags	KEYWORD2
 addTxPower	KEYWORD2
 addName	KEYWORD2
-addApperance	KEYWORD2
+addAppearance	KEYWORD2
 addUuid	KEYWORD2
 addService	KEYWORD2
 setBeacon	KEYWORD2

libraries/Bluefruit52Lib/src/BLEAdvertising.cpp

@@ -154,7 +154,7 @@ bool BLEAdvertising::addFlags(uint8_t flags)
   return addData(BLE_GAP_AD_TYPE_FLAGS, &flags, 1);
 }
 
-bool BLEAdvertising::addApperance(uint16_t appearance)
+bool BLEAdvertising::addAppearance(uint16_t appearance)
 {
   return addData(BLE_GAP_AD_TYPE_APPEARANCE, &appearance, 2);
 }

libraries/Bluefruit52Lib/src/BLEAdvertising.h

@@ -66,7 +66,7 @@ class BLEAdvertising
   bool addFlags(uint8_t flags);
   bool addTxPower(void);
   bool addName(void);
-  bool addApperance(uint16_t appearance);
+  bool addAppearance(uint16_t appearance);
 
   bool addUuid(BLEUuid bleuuid);
   bool addService(BLEService& service);