Readme typo (#101)

Author: cltnschlosser

readme.md

@@ -145,7 +145,7 @@ The library defines three protocols for the implementation of a Lambda Handler.
 
 An `EventLoopFuture` based processing protocol for a Lambda that takes a `ByteBuffer` and returns a `ByteBuffer?` asynchronously.  
 
-`ByteBufferLambdaHandler` is the lowest level protocol designed to power the higher level `EventLoopLambdaHandler` and `LambdaHandler` based APIs. Users are not expected to use this protocol, though some performance sensitive applications that operate at he `ByteBuffer` level or have special serialization needs may choose to do so.
+`ByteBufferLambdaHandler` is the lowest level protocol designed to power the higher level `EventLoopLambdaHandler` and `LambdaHandler` based APIs. Users are not expected to use this protocol, though some performance sensitive applications that operate at the `ByteBuffer` level or have special serialization needs may choose to do so.
 
 ```swift
 public protocol ByteBufferLambdaHandler {