Fixed link to JTAG Debugging for ESP32

diff --git a/docs/hw-reference/modules-and-boards.rst b/docs/hw-reference/modules-and-boards.rst
index 7263ef1a40c6b7414a7d25f01e5744f7fb377258..5c3de425ececb02c91ae2b0aec05c7731cb95ab0 100644 (file)
--- a/docs/hw-reference/modules-and-boards.rst
+++ b/docs/hw-reference/modules-and-boards.rst
@@ -86,6 +86,6 @@ V2 boards have a shiny black finish and a male camera header, while V3 boards ha
 * `FTDI Virtual COM Port Drivers`_
 
 
-.. _JTAG Debugging for ESP32: https://github.com/espressif/esp-idf/
+.. _JTAG Debugging for ESP32: http://espressif.com/sites/default/files/documentation/jtag_debugging_for_esp32_en.pdf
 .. _FTDI Virtual COM Port Drivers: http://www.ftdichip.com/Drivers/D2XX.htm