docs: Fix broken link in nvs and jtag example

- Closes espressif#1922

examples/storage/nvs_rw_blob/README.md

@@ -9,6 +9,6 @@ Example also shows how to implement diagnostics if read / write operation was su
 
 If not done already, consider checking simpler example *storage/nvs_rw_value*, that has been used as a starting point for preparing this one. 
 
-Detailed functional description of NVS and API is provided in [documentation](https://esp-idf.readthedocs.io/en/latest/api-reference/nvs_flash.html).
+Detailed functional description of NVS and API is provided in [documentation](https://esp-idf.readthedocs.io/en/latest/api-reference/storage/nvs_flash.html).
 
 See the README.md file in the upper level 'examples' directory for more information about examples.

examples/storage/nvs_rw_value/README.md

@@ -8,6 +8,6 @@ Example also shows how to check if read / write operation was successful, or cer
 
 Check another example *storage/nvs_rw_blob*, that shows how to read and write variable length binary data (blob).
 
-Detailed functional description of NVS and API is provided in [documentation](https://esp-idf.readthedocs.io/en/latest/api-reference/nvs_flash.html).
+Detailed functional description of NVS and API is provided in [documentation](https://esp-idf.readthedocs.io/en/latest/api-reference/storage/nvs_flash.html).
 
 See the README.md file in the upper level 'examples' directory for more information about examples.

examples/system/app_trace_to_host/README.md

@@ -87,7 +87,7 @@ To run the example and retrieve the log from the host, do the following:
 
 1.  Connect JTAG interface to ESP32 board, power up both JTAG and ESP32. For details how to setup JTAG interface see [JTAG Debugging](https://esp-idf.readthedocs.io/en/latest/api-guides/jtag-debugging/index.html). 
 
-2.  [Run OpenOCD](https://esp-idf.readthedocs.io/en/latest/api-guides/jtag-debugging/index.html#run-openocd). If you are using the [binary distribution of OpenOCD](https://esp-idf.readthedocs.io/en/latest/api-guides/jtag-debugging/index.html#jtag-debugging-setup-openocd) and one of versions of [ESP-WROVER-KIT](https://esp-idf.readthedocs.io/en/latest/hw-reference/modules-and-boards.html#esp32-wrover-kit-v1-esp32-devkitj-v1), respective command line will look as follows:
+2.  [Run OpenOCD](https://esp-idf.readthedocs.io/en/latest/api-guides/jtag-debugging/index.html#run-openocd). If you are using the [binary distribution of OpenOCD](https://esp-idf.readthedocs.io/en/latest/api-guides/jtag-debugging/index.html#jtag-debugging-setup-openocd) and one of versions of [ESP-WROVER-KIT](https://esp-idf.readthedocs.io/en/latest/hw-reference/modules-and-boards.html#esp-wrover-kit-v3), respective command line will look as follows:
 
     ```
     cd ~/esp/openocd-esp32