Update README.md

README.md

@@ -33,7 +33,7 @@ Table of Contents
   * [Simulating x393 project with Icarus Verilog](#simulating-x393-project-with-icarus-verilog)
       
 ## VDT plugin documentation
-Documentation is available in a separate [vdt_docs](../../vdt-docs) repository.
+Documentation is available in a separate [vdt_docs](https://git.elphel.com/Elphel/vdt-docs) repository.
 Here are some [screenshots](https://git.elphel.com/Elphel/vdt-docs/blob/master/VDT-UserManualAddendum.pdf)
 ## Installation of VDT plugin and related programs
 VDT plugin for Eclipse is designed to integrate different tools for Verilog-based FPGA design.