Update README.md (#72)

Author: wishwaD7

v3-sdk/quoting/README.md

@@ -19,8 +19,8 @@ This application is a read only quoting application that communicates with the E
 
 ### Get a mainnet RPC URL
 
-1. Create aun API key using any of the [Ethereum API providers](https://docs.ethers.io/v5/api/providers/) and grab the respective RPC URL, eg `https://mainnet.infura.io/v3/0ac57a06f2994538829c14745750d721`
-2. Set that as the value of the `mainnet` `rpc` vale inside the [config](./src/config.ts).
+1. Create an API key using any of the [Ethereum API providers](https://docs.ethers.io/v5/api/providers/) and grab the respective RPC URL, eg `https://mainnet.infura.io/v3/0ac57a06f2994538829c14745750d721`
+2. Set that as the value of the `mainnet` `rpc` value inside the [config](./src/config.ts).
 
 ### Start the web interface