docs: Fix typo in readme

README.md

@@ -4,7 +4,7 @@ Go interface to NTDLL functions
 [![GoDoc](https://godoc.org/github.com/hillu/go-ntdll?status.svg)](https://godoc.org/github.com/hillu/go-ntdll)
 [![Go Report Card](https://goreportcard.com/badge/github.com/hillu/go-ntdll)](https://goreportcard.com/report/github.com/hillu/go-ntdll)
 
-This package makes selected `NTDLL` funcions directly available in Go
+This package makes selected `NTDLL` functions directly available in Go
 programs. At the moment, types and functions for accessing kernel
 objects and the Registry are included. The goal is to, eventually,
 cover all available functions.