Merge pull request #8566 from rubensfig/isis_metricstyle

doc: isis: document default value for metric-style

diff --combined doc/user/isisd.rst
index c1bdd9a694ebbf26c4662c651a9bbbcdd369364a,3dcc500012ef167ffdee71bb141f9858dee86e28..595bae143e09aa506d6b62c98a88f07927751e35
--- 1/doc/user/isisd.rst
--- 2/doc/user/isisd.rst
+++ b/doc/user/isisd.rst
@@@ -77,7 -77,7 +77,7 @@@ writing, *isisd* does not support multi
     - transition
       Send and accept both styles of TLVs during transition
     - wide
-      Use new style of TLVs to carry wider metric
+      Use new style of TLVs to carry wider metric. FRR uses this as a default value
  
  .. clicmd:: set-overload-bit
  
@@@ -172,7 -172,7 +172,7 @@@ ISIS interfac
  
  .. _ip-router-isis-word:
  
 -.. clicmd:: <ip|ipv6> router isis WORD [vrf NAME]
 +.. clicmd:: <ip|ipv6> router isis WORD
  
     Activate ISIS adjacency on this interface. Note that the name of ISIS
     instance must be the same as the one used to configure the ISIS process (see