typo fixes

Author: mloit

Documentation/Usage.md

@@ -358,13 +358,13 @@ let result = try! transaction.call()
 
 ##### Other Transaction Types
 
-By default a `legacy` transaction will be created which is compatible accross all chains, regardless of which fork.
+By default a `legacy` transaction will be created which is compatible across all chains, regardless of which fork.
 To create one of the new transaction types introduced with the `london` fork you will need to set some additonal parameters 
 in the `TransactionOptions` object. Note you should only try to send one of tehse new types of transactions if you are on a chain 
 that supports them.
 
 To send an EIP-2930 style transacton with an access list you need to set the transaction type, and the access list, 
-in addition what is shown in the eexamples above 
+in addition what is shown in the examples above.
 ```swift
 let accessList: [AccessListEntry] = [
     AccessListEntry(
@@ -388,7 +388,7 @@ options.type = .eip1559
 options.maxFeePerGas = .manual(...) // the maximum price per unit of gas, inclusive of baseFee and tip
 options.maxPriorityFeePerGas = .manual(...) // the tip to be paid to the miner, per unit of gas
 ```
-Note there is a new `Oracle` available that can be used to assist with estimating the new gas fees
+Note there is a new `Oracle` object available that can be used to assist with estimating the new gas fees
 
 ### Chain state