update invalid links in the ble mesh example documentation

components/bt/esp_ble_mesh/README.md

@@ -16,6 +16,6 @@ The ESP-BLE-MESH networking enables many-to-many (m:m) device communications and
 - [API Reference](https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/bluetooth/esp-ble-mesh.html)
 
 
-### [ESP-BLE-MESH Examples](https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/esp_ble_mesh)
+### [ESP-BLE-MESH Examples](../../../examples/bluetooth/esp_ble_mesh)
 
 - Refer to **ESP-BLE-MESH Examples** of [Getting Started](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/esp-ble-mesh/ble-mesh-index.html#getting-started-with-esp-ble-mesh) for the tutorials of ESP BLE Mesh examples.

examples/bluetooth/esp_ble_mesh/fast_provisioning/fast_prov_server/tutorial/EspBleMesh.md

@@ -12,7 +12,7 @@ A video of this example can be seen from [here](https://dl.espressif.com/BLE/pub
 
 > Note:
 > 
-> 1. Please flash the [`fast_prov_server`](https://github.com/espressif/esp-idf/tree/master/examples/bluetooth/esp_ble_mesh/fast_provisioning/fast_prov_server) to the development boards first;
+> 1. Please flash the [`fast_prov_server`](../../) to the development boards first;
 > 2. To have a better understanding of the performance of the BLE Mesh network, we recommend that at least 3 devices should be added in your network.
 > 3. We recommend that you solder LED indicators if your development board does not come with lights. 
 > 4. Please check the type of board and LED pin definition enabled in `Example BLE Mesh Config` by running `idf.py menuconfig`