docs on Genesis config for Next_Length_Multiplier & Target_Block_Size

Author: MrishoLukamba

sugondat/chain/pallets/length-fee-adjustment/src/lib.rs

@@ -140,10 +140,14 @@ pub mod pallet {
     pub type TargetBlockSize<T: Config> =
         StorageValue<_, Perquintill, ValueQuery, TargetBlockSizeDefault>;
 
+    /// Genesis config for setting up `NextLengthMultiplier` and `TargetBlockSize` storage.
+    /// Set None if the default values `NextLengthMultiplierDefault` & `TargetBlockSizeDefault` are to be used.
     #[pallet::genesis_config]
     #[derive(frame_support::DefaultNoBound)]
     pub struct GenesisConfig<T: Config> {
+        /// Genesis set up for next length multiplier storage item
         pub next_length_multiplier: Option<FixedU128>,
+        /// Genesis set up for target_block_size storage item
         pub target_block_size: Option<Perquintill>,
         _phantom: PhantomData<T>,
     }