Dump version to 0.2.2

README.md

@@ -29,7 +29,7 @@ https://outblock.github.io/flow-swift/
 This is a Swift Package, and can be installed via Xcode with the URL of this repository:
 
 ```swift
-.package(name: "Flow", url: "https://github.com/outblock/flow-swift.git", from: "0.2.0")
+.package(name: "Flow", url: "https://github.com/outblock/flow-swift.git", from: "0.2.2")
 ```
 
 ## Config
@@ -55,6 +55,18 @@ let chainID = Flow.ChainID.custom(name: "Alchemy-Testnet", endpoint:endpoint)
 flow.configure(chainID: chainID)
 ```
 
+### (Optional) GRPC Acces Node
+
+If you want to use g-RPC access client better than HTTP client, please import this repo instead:
+[flow-swift-gRPC](https://github.com/Outblock/flow-swift-gRPC)
+
+Here is the example how you initialize it:
+```swift
+let accessAPI = Flow.GRPCAccessAPI(chainID: .mainnet)!
+let chainID = Flow.ChainID.mainnet
+flow.configure(chainID: chainID, accessAPI: accessAPI)
+``` 
+
 
 ## Querying the Flow Network
 After you have established a connection with an access node, you can query the Flow network to retrieve data about blocks, accounts, events and transactions. We will explore how to retrieve each of these entities in the sections below.