Correct intersphinx for ghdl simulation options
Changed from ghdl:simulation-options to ghdl:simulation_options
@@ -349,7 +349,7 @@ The option can be set on the command line, as shown in the following example.
A VCD file named ``anyname.vcd`` will be generated in the current directory.
The :make:var:`SIM_ARGS` option allows access to all GHDL Command Line Run (-r)
-options listed in :ref:`ghdl:simulation-options`. This includes other waveform
+options listed in :ref:`ghdl:simulation_options`. This includes other waveform
generation options including the compressed Fast Signal Trace (FST) format and
the GHDL Wave File (GHW) which supports any VHDL type. For more information
see :ref:`ghdl:export_waves`.
