Fix broken README links

examples/bluetooth/bluedroid/ble/blufi/README.md

@@ -3,11 +3,11 @@ ESP-IDF Blufi demo
 
 This is the demo for bluetooth config wifi connection to ap.
 
-To test this demo, you need to prepare a mobile phone with blufi application installed. You can download the blufi application from [Android version](https://github.com/EspressifApp/EspBlufi) and [iOS version](https://itunes.apple.com/cn/app/espblufi/id1450614082?mt=8). 
+To test this demo, you need to prepare a mobile phone with blufi application installed. You can download the blufi application from [Android version](https://github.com/EspressifApp/EspBlufi) and [iOS version](https://itunes.apple.com/cn/app/espblufi/id1450614082?mt=8).
 
 Blufi is completely open source, here is the download link:
 
-* [blufi source code](https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/blufi)
+* [blufi source code](https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/bluedroid/ble/blufi)
 
 * [BluFi protocol](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/blufi.html?highlight=blufi#the-frame-formats-defined-in-blufi)
 

examples/bluetooth/bluedroid/coex/gattc_gatts_coex/README.md

@@ -5,10 +5,10 @@ This example demonstrates the coexistence of gattc and gatts.
 
 This example creates a GATT service and starts ADV. The ADV name is `ESP_GATTS_DEMO`, then waits to be connected. At the same time, a gatt client is created, the ADV name is `ESP_GATTS_DEMO`, the device is connected, and the data is exchanged. If the device is not found within 120 seconds, the example will stop scanning.
 
-ESP-IDF also allows users to create a GATT service via an attribute table, rather than add attributes one by one. And it is recommended for users to use. For more information about this method, please refer to [gatt_server_service_table_demo](../gatt_server_service_table).
+ESP-IDF also allows users to create a GATT service via an attribute table, rather than add attributes one by one. And it is recommended for users to use. For more information about this method, please refer to [gatt_server_service_table_demo](../../ble/gatt_server_service_table).
 
-To test this example, you can run the [gatt_client_demo](../gatt_client), which can scan for and connect to this example automatically, and run [gatt_server_demo](../gatt_server), Waiting to be connected. They will start exchanging data once the GATT client has enabled the notification function of the GATT server.
+To test this example, you can run the [gatt_client_demo](../../ble/gatt_client), which can scan for and connect to this example automatically, and run [gatt_server_demo](../../ble/gatt_server), Waiting to be connected. They will start exchanging data once the GATT client has enabled the notification function of the GATT server.
 
-Please check the [tutorial](tutorial/Gatt_Server_Example_Walkthrough.md) for more information about the gatts part of this example.
-Please check the [tutorial](tutorial/Gatt_Client_Example_Walkthrough.md) for more information about the gattc part of this example.
+Please check the [tutorial](../../ble/gatt_server/tutorial/Gatt_Server_Example_Walkthrough.md) for more information about the gatts part of this example.
+Please check the [tutorial](../../ble/gatt_client/tutorial/Gatt_Client_Example_Walkthrough.md) for more information about the gattc part of this example.
 

examples/bluetooth/esp_ble_mesh/README.md

@@ -1,6 +1,6 @@
 # ESP-BLE-MESH Examples
 
-[ESP-BLE-MESH]($IDF_PATH/components/bt/esp_ble_mesh/) is the official Bluetooth® Mesh stack of Espressif Systems. We will provide long-term support for new features, performance optimization, etc.
+[ESP-BLE-MESH](../../../components/bt/esp_ble_mesh/) is the official Bluetooth® Mesh stack of Espressif Systems. We will provide long-term support for new features, performance optimization, etc.
 
 Please help note that breaking changes may be introduced into ESP-BLE-MESH on [minor IDF versions](https://docs.espressif.com/projects/esp-idf/en/latest/versions.html).
 

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/README.md

@@ -17,4 +17,4 @@ WiFi的Iperf协议使用方法请参考[WiFi Iperf README](../../../wifi/iperf/R
 - Generic OnOff Server Model：此Model通过暴露自己的OnOff State，从而实现LED 灯的开关功能
 - Generic OnOff Client Model： 使用此Model可以实现开关功能，控制别的node 的LED灯的开关
 - Fast Provision Server Model： 此Model是为了进行快速配网而实现的自定义Model，通过此Model当节点作为临时provisioner进行配网成功后，需要将生成的Element地址通过此Model进行传给provisioner
-- Fast Provision Client Model：此Model和Fast Provision Server Model是配合使用的
+- Fast Provision Client Model：此Model和Fast Provision Server Model是配合使用的