component/bt: fix some ble document description error

components/bt/host/bluedroid/api/include/api/esp_gattc_api.h

@@ -380,7 +380,7 @@ esp_err_t esp_ble_gattc_search_service(esp_gatt_if_t gattc_if, uint16_t conn_id,
 /**
  * @brief           Find all the service with the given service uuid in the gattc cache, if the svc_uuid is NULL, find all the service.
  *                  Note: It just get service from local cache, won't get from remote devices. If want to get it from remote device, need
- *                  to used the esp_ble_gattc_search_service.
+ *                  to used the esp_ble_gattc_cache_refresh, then call esp_ble_gattc_get_service again.
  *
  * @param[in]       gattc_if: Gatt client access interface.
  * @param[in]       conn_id: connection ID which identify the server.

examples/bluetooth/bluedroid/ble/gatt_client/tutorial/Gatt_Client_Example_Walkthrough.md

@@ -209,7 +209,7 @@ static struct gattc_profile_inst gl_profile_tab[PROFILE_NUM] = {
 };
 ```
 
-The initialization of the Application Profile table array includes defining the callback functions for each Profile. These are `gattc_profile_a_event_handler()` and `gattc_profile_a_event_handler()` respectively. In addition, the GATT interface is initialized to the default value of `ESP_GATT_IF_NONE`. Later on, when the Application Profile is registered, the BLE stack returns a GATT interface instance to use with that Application Profile. 
+The initialization of the Application Profile table array includes defining the callback function for Profile. It is `gattc_profile_event_handler()`. In addition, the GATT interface is initialized to the default value of `ESP_GATT_IF_NONE`. Later on, when the Application Profile is registered, the BLE stack returns a GATT interface instance to use with that Application Profile. 
 
 The profile registration triggers an `ESP_GATTC_REG_EVT` event, which is handled by the `esp_gattc_cb()` event handler. The handler takes the GATT interface returned by the event and stores it in the profile table:
 

examples/bluetooth/bluedroid/ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md

@@ -430,7 +430,7 @@ static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_
 
 ## Creating Services
 
-The register event is also used to create a profile attributes table by using the `esp_ble_gatts_create_attr_tab()` function, which takes an `esp_gatts_attr_db_t` type structure that has all the information of the service table. The way to create this table is:
+The register event is also used to create a service by using the `esp_ble_gatts_create_service()`. When service creation is done, a callback event ESP_GATTS_CREATE_EVT is called to report status and service ID to the profile. The way to create service is:
 
 ```c
 …