add cosmetic changes to comments and keybindings

plugins/arrow.nix

@@ -11,6 +11,13 @@
         leader_key = ';', -- Recommended to be a single key
         buffer_leader_key = 'm', -- Per Buffer Mappings
       })
+      
+      -- prewritten for later
+      -- require("which-key").add({
+        -- {";", desc = "Arrow buffers"},
+        -- {"m", desc = "Arrow marks"}
+      -- })
     '';
   };
+
 }