Fixed link

Author: s-hadinger

Zigbee-Internals.md

@@ -6,7 +6,7 @@ This page is for developers who want to understand how Zigbee2Tasmota (Z2T) work
 ## CC2530 ZNP protocol
 The CC2530 is flashed with Texas Instrument ZNP Software version 1.2. The protocol is build on a serial communication between the main cpu and the CC2530.
 
-[Z-Stack 1.2 Monitor and Test API](_media/zigbee/Z-Stack_API_1_2.pdf)
+[Z-Stack 1.2 Monitor and Test API](../_media/zigbee/Z-Stack_API_1_2.pdf)
 
 Serial communication is configured as 8N1, 115200 bauds. We suggest to use GPIO13/15 because they have hardware serial support. Please note that there is only one usable hardware serial, either on GPIO1/3 or GPIO13/15.