docs(man_eza_colors): added the new colors option to the man

man/eza_colors.5.md

@@ -168,12 +168,18 @@ LIST OF CODES
 `uu`
 : a user that’s you
 
+`uR`
+: a user that's root
+
 `un`
 : a user that’s someone else
 
 `gu`
 : a group that you belong to
 
+`gR`
+: a group realted to root
+
 `gn`
 : a group you aren’t a member of