Adding information about ql_dsp command
Adding information about ql_dsp command

Signed-off-by: Samy <a1a7e875d248c025c4e2076a6766ffd356d17244@cpe.fr>

antmicro/yosys-symbiflow-plugins,SymbiFlow/yosys-f4pga-plugins,SymbiFlow/yosys-f4pga-plugins,chipsalliance/yosys-f4pga-plugins,antmicro/yosys-symbiflow-plugins,chipsalliance/yosys-f4pga-plugins,SymbiFlow/yosys-f4pga-plugins,antmicro/yosys-symbiflow-plugins,SymbiFlow/yosys-symbiflow-plugins,SymbiFlow/yosys-symbiflow-plugins,SymbiFlow/yosys-symbiflow-plugins