Added cachet client library

README.md

@@ -852,6 +852,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [anaconda](https://github.com/ChimeraCoder/anaconda) - A Go client library for the Twitter 1.1 API
 * [aws-sdk-go](https://github.com/aws/aws-sdk-go) - The official AWS SDK for the Go programming language.
 * [brewerydb](https://github.com/naegelejd/brewerydb) - Go library for accessing the BreweryDB API.
+* [cachet](https://github.com/andygrunwald/cachet) - Go client library for [Cachet (open source status page system)](https://cachethq.io/)
 * [clarifai](https://github.com/samuelcouch/clarifai) - A Go client library for interfacing with the Clarifai API.
 * [discordgo](https://github.com/bwmarrin/discordgo) -  Go bindings for the Discord Chat API
 * [facebook](https://github.com/huandu/facebook) - Go Library that supports the Facebook Graph API