Update Readme (#1079)

* Update Readme

Added the package listing for go-openapi allows parsing swagger files outside of the go-swagger package.

* ammending change

whoops was not paying attention. sloppy on my part

README.md

@@ -599,6 +599,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [go-chat-bot](https://github.com/go-chat-bot/bot) - IRC, Slack & Telegram bot written in Go.
 * [go-commons-pool](https://github.com/jolestar/go-commons-pool) - A generic object pool for Golang.
 * [go-multierror](https://github.com/hashicorp/go-multierror) - A Go (golang) package for representing a list of errors as a single error.
+* [go-openapi](https://github.com/go-openapi) - A collection of packages to parse and utilize open-api schemas
 * [go-shortid](https://github.com/ventu-io/go-shortid) - Distributed generation of super short, unique, non-sequential, URL friendly IDs.
 * [gopsutil](https://github.com/shirou/gopsutil) - A cross-platform library for retrieving process and system utilization(CPU, Memory, Disks, etc).
 * [gosms](https://github.com/haxpax/gosms) - Your own local SMS gateway in Go that can be used to send SMS