natspec(DrawHistory): improve global contract natspec

contracts/DrawHistory.sol

@@ -11,13 +11,13 @@ import "./libraries/DrawRingBufferLib.sol";
 /**
   * @title  PoolTogether V4 DrawHistory
   * @author PoolTogether Inc Team
-  * @notice The DrawHistory keeps a historical record of Draws created/pushed by DrawBeacon(s).
-            Once a DrawBeacon (on mainnet) completes a RNG request, a new Draw will be added
-            to the DrawHistory draws ring buffer. A DrawHistory will store a limited number
-            of Draws before beginning to overwrite (managed via the cardinality) previous Draws.
-            All mainnet DrawHistory(s) are updated directly from a DrawBeacon, but non-mainnet
-            DrawHistory(s) (Matic, Optimism, Arbitrum, etc...) will receive a cross-chain message,
-            duplicating the mainnet Draw configuration - enabling a prize savings liquidity network.
+  * @notice The DrawHistory provides historical lookups of Draws via a circular ring buffer.
+            Historical Draws can be accessed on-chain using a drawId to calculate ring buffer storage slot.
+            The Draw settings can be created by manager/owner and existing Draws can only be updated the owner.
+            Once a starting Draw has been added to the ring buffer, all following draws must have a sequential Draw ID.
+    @dev    A DrawHistory store a limited number of Draws before beginning to overwrite (managed via the cardinality) previous Draws.
+    @dev    All mainnet DrawHistory(s) are updated directly from a DrawBeacon, but non-mainnet DrawHistory(s) (Matic, Optimism, Arbitrum, etc...)
+            will receive a cross-chain message, duplicating the mainnet Draw configuration - enabling a prize savings liquidity network.
 */
 contract DrawHistory is IDrawHistory, Manageable {
     using DrawRingBufferLib for DrawRingBufferLib.Buffer;

contracts/PrizeDistributionHistory.sol

@@ -11,9 +11,9 @@ import "./interfaces/IPrizeDistributionHistory.sol";
 /**
   * @title  PoolTogether V4 PrizeDistributionHistory
   * @author PoolTogether Inc Team
-  * @notice The PrizeDistributionHistory contract stores PrizeDistribution struct parameters (linked with a Draw ID) in a 
+  * @notice The PrizeDistributionHistory contract provides historical lookups of PrizeDistribution struct parameters (linked with a Draw ID) via a 
             circular ring buffer. Historical PrizeDistribution parameters can be accessed on-chain using a drawId to calculate
-            ring buffer storage slot. The PrizeDistribution parameters can be created my manager/owner and existing PrizeDistribution
+            ring buffer storage slot. The PrizeDistribution parameters can be created by manager/owner and existing PrizeDistribution
             parameters can only be updated the owner. When adding a new PrizeDistribution basic sanity checks will be used to
             validate the incoming parameters.
 */

contracts/Reserve.sol

@@ -12,7 +12,7 @@ import "./libraries/ObservationLib.sol";
 /**
     * @title  PoolTogether V4 Reserve
     * @author PoolTogether Inc Team
-    * @notice The Reserve contract enables historical searches of a token balance increase during a target timerange.
+    * @notice The Reserve contract provides historical lookups of a token balance increase during a target timerange.
               As the Reserve contract transfers OUT tokens, the withdraw accumulator is increased. When tokens are
               transfered IN new checkpoint *can* be created if checkpoint() is called after transfering tokens.
               By using the reserve and withdraw accumulators to create a new checkpoint, any contract or account