Merge pull request #54 from jas4711/fix-typo

Fix typo.

README.md

@@ -3,7 +3,7 @@
 [![Build status](https://badge.buildkite.com/1fad7fb9610283e4955ea4ec4c88faca52162b637fea61821e.svg)](https://buildkite.com/buildkite/go-pipeline)
 [![Go Reference](https://pkg.go.dev/badge/github.com/buildkite/go-pipeline.svg)](https://pkg.go.dev/github.com/buildkite/go-pipeline)
 
-`go-pipeline` is a Go libary used for building and modifying Buildkite pipelines in golang. It's used internally by the [Buildkite Agent](https://github.com/buildkite/agent) to inspect and sign pipelines prior to uploading them, but is also useful for building tools that generate pipelines.
+`go-pipeline` is a Go library used for building and modifying Buildkite pipelines in golang. It's used internally by the [Buildkite Agent](https://github.com/buildkite/agent) to inspect and sign pipelines prior to uploading them, but is also useful for building tools that generate pipelines.
 
 ## Installation