doc: cleanup of reference designs from core documentation

doc/basic_concepts.rst

@@ -309,9 +309,7 @@ triggered, following the process depicted in :numref:`fig-wrtd-alarm`.
 Application
 ===========
 
-A :ref:`node` may be running one or more Applications (firmware). As an example, the
-:ref:`spec150t_ref_adc` runs a single Application (to communicate with the ADC), while the
-:ref:`svec_ref_tdc_fd` runs two Applications (one for the TDC and one for the Fine Delay generator).
+A :ref:`node` may be running one or more Applications (firmware).
 
 As such, an Application is also a :ref:`rep_cap` instance inside a :ref:`node`.
 

doc/ref_nodes.rst

@@ -7,4 +7,4 @@
 Reference Nodes
 ---------------
 
-See repository https://gitlab.cern.ch/be-cem-edl/fec/hardware-modules/wrtd-reference-designs for some reference designs.
+See repository https://ohwr.org/project/wrtd-ref-designs/ for some reference designs.