Fix typo in hooks.rs

Author: gztensor

pallets/subtensor/src/macros/hooks.rs

@@ -158,8 +158,8 @@ mod hooks {
                 .saturating_add(migrations::migrate_auto_stake_destination::migrate_auto_stake_destination::<T>())
                 // Migrate Kappa to default (0.5)
                 .saturating_add(migrations::migrate_kappa_map_to_default::migrate_kappa_map_to_default::<T>())
-                // 
-                .saturating_add(migrations::migrate_set_first_tao_flow_block::migrate_set_first_tao_flow_block::<T>()),
+                // Set the first block of tao flow
+                .saturating_add(migrations::migrate_set_first_tao_flow_block::migrate_set_first_tao_flow_block::<T>());
             weight
         }