Putting back the pages

Author: Irit Arkin

docs.json

@@ -137,6 +137,9 @@
             "title": "Bluetooth",
             "intro": {"type": "markdown", "url": "https://github.com/ARMmbed/Handbook/blob/new_engine/docs/reference/api/connectivity/bluetooth/bluetooth.md"},
             "sources": [
+                {"type": "markdown", "url": "https://github.com/ARMmbed/Handbook/blob/new_engine/docs/reference/api/connectivity/bluetooth/BLE.md"},
+                {"type": "markdown", "url": "https://github.com/ARMmbed/Handbook/blob/new_engine/docs/reference/api/connectivity/bluetooth/HeartRateService.md"},
+                {"type": "markdown", "url": "https://github.com/ARMmbed/Handbook/blob/new_engine/docs/reference/api/connectivity/bluetooth/iBeacon.md"}
             ]
           },
           {
@@ -386,10 +389,10 @@
             "MACRO_EXPANSION": "YES",
             "EXPAND_ONLY_PREDEF": "NO",
             "SEARCH_INCLUDES": "YES",
-            "INCLUDE_PATH": "", 
-            "INCLUDE_FILE_PATTERNS": "", 
+            "INCLUDE_PATH": "",
+            "INCLUDE_FILE_PATTERNS": "",
             "PREDEFINED": "DOXYGEN_ONLY DEVICE_ANALOGIN DEVICE_ANALOGOUT DEVICE_CAN DEVICE_ETHERNET DEVICE_EMAC DEVICE_FLASH  DEVICE_I2C DEVICE_I2CSLAVE DEVICE_I2C_ASYNCH DEVICE_INTERRUPTIN DEVICE_LOWPOWERTIMER DEVICE_PORTIN DEVICE_PORTINOUT DEVICE_PORTOUT DEVICE_PWMOUT DEVICE_RTC DEVICE_TRNG DEVICE_SERIAL DEVICE_SERIAL_ASYNCH DEVICE_SERIAL_FC DEVICE_SLEEP DEVICE_SPI DEVICE_SPI_ASYNCH DEVICE_SPISLAVE DEVICE_STORAGE MBED_DEPRECATED_SINCE(f, g)= MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, M)=",
-            "EXPAND_AS_DEFINED": "", 
+            "EXPAND_AS_DEFINED": "",
             "SKIP_FUNCTION_MACROS": "NO",
             "EXCLUDE_PATTERNS": "*/tools/* */targets/* */FEATURE_*/* */features/mbedtls/* */features/storage/* */features/unsupported/* */BUILD/* */rtos/TARGET_CORTEX/rtx*/* */cmsis/* */features/FEATURES_*"
         }