docs: update gas benchmarks with latest changes (#367)

Author: gjermundgaraba

README.md

@@ -189,11 +189,11 @@ The following benchmarks are for a single packet transfer without aggregation.
 
 | **Contract** | **Method** | **Description** | **Gas (groth16)** | **Gas (plonk)** |
 |:---:|:---:|:---:|:---:|:---:|
-| `ICS26Router.sol` | `sendPacket` | Initiating an IBC transfer with an `ERC20`. | ~150,000 | ~150,000 |
-| `ICS26Router.sol` | `recvPacket` | Receiving _back_ an `ERC20` token. | ~509,542 | ~592,518 |
-| `ICS26Router.sol` | `recvPacket` | Receiving a _new_ Cosmos token for the first time. (Deploying an `ERC20` contract) | ~1,079,133 | ~1,163,441 |
-| `ICS26Router.sol` | `ackPacket` | Acknowledging an ICS20 packet. | ~393,224 | ~477,022 |
-| `ICS26Router.sol` | `timeoutPacket` | Timing out an ICS20 packet | ~465,360 | ~549,821 |
+| `ICS26Router.sol` | `sendPacket` | Initiating an IBC transfer with an `ERC20`. | ~165,000 | ~165,000 |
+| `ICS26Router.sol` | `recvPacket` | Receiving _back_ an `ERC20` token. | ~518,643 | ~601,729 |
+| `ICS26Router.sol` | `recvPacket` | Receiving a _new_ Cosmos token for the first time. (Deploying an `ERC20` contract) | ~1,087,456 | ~1,171,586 |
+| `ICS26Router.sol` | `ackPacket` | Acknowledging an ICS20 packet. | ~393,398 | ~477,221 |
+| `ICS26Router.sol` | `timeoutPacket` | Timing out an ICS20 packet | ~466,007 | ~549,322 |
 
 ### Aggregated Packet Benchmarks
 
@@ -202,8 +202,8 @@ Since there is no meaningful difference in gas costs between plonk and groth16 i
 
 | **ICS26Router Method** | **Description** | **Avg Gas (25 packets)** | **Avg Gas (50 packets)** |
 |:---:|:---:|:---:|:---:|
-| `multicall/recvPacket` | Receiving _back_ an `ERC20` token. | ~170,301 | ~163,748 |
-| `multicall/ackPacket` | Acknowledging an ICS20 packet. | ~92,137 | ~86,432 |
+| `multicall/recvPacket` | Receiving _back_ an `ERC20` token. | ~178,272 | ~165,240 |
+| `multicall/ackPacket` | Acknowledging an ICS20 packet. | ~92,269 | ~86,564 |
 
 Note: These gas benchmarks are with Groth16.