fix(man): dracut.cmdline.7: clarify "rd.nvmf.discover=fc,auto"

man/dracut.cmdline.7.asc

@@ -909,9 +909,19 @@ NVMf
     _<traddr>_ and the optionally _<host_traddr>_ or _<trsvcid>_.
     The first argument specifies the transport to use; currently only
     'rdma', 'fc', or 'tcp' are supported.
-    The _<traddr>_ parameter can be set to 'auto' to select
-    autodiscovery; in that case all other parameters are ignored.
     This parameter can be specified multiple times.
++
+[listing]
+.Examples
+--
+rd.nvmf.discover=tcp,192.168.10.10,,4420
+rd.nvmf.discover=fc,nn-0x201700a05634f5bf:pn-0x201900a05634f5bf,nn-0x200000109b579ef3:pn-0x100000109b579ef3
+--
+
+**rd.nvmf.discover=fc,auto**::
+    This special syntax determines that Fibre Channel autodiscovery
+    is to be used rather than regular NVMe discovery. It takes precedence
+    over all other _rd.nvmf.discover=_ arguments.
 
 NBD
 ~~~