Add nextpnr section and link to subpage.

diff --git a/HDL_workflow.mdwn b/HDL_workflow.mdwn
index 95ec794940732c029bea9f90a2560984606c4da5..bd30b9684b47162a49c13ab593a395aef3fe342f 100644 (file)
--- a/HDL_workflow.mdwn
+++ b/HDL_workflow.mdwn
@@ -527,6 +527,12 @@ circuit communicate with each other.
 
 See [[HDL_workflow/coriolis2]] page, for those people doing layout work.
 
+## Nextpnr
+
+A portable FPGA place and route tool.
+
+See [[HDL_workflow/nextpnr]] page for installation instructions of nextpnr with ECP5 support for Lattice FPGA ECP5 series.
+
 # Registering for git repository access
 
 After going through the onboarding process and having agreed to take