Added go-multierror to Miscellaneous

go-multierror by hashicorp - put it to miscellaneous because the other categories don't fit for me

README.md

@@ -407,6 +407,7 @@ Join us on IRC at **#awesome-go** on freenode [web access](http://webchat.freeno
 
 * [autoflags](https://github.com/artyom/autoflags) - Go package to automatically define command line flags from struct fields.
 * [browscap_go](https://github.com/fromYukki/browscap_go) - GoLang Library for [Browser Capabilities Project](http://browscap.org/).
+* [go-multierror](https://github.com/hashicorp/go-multierror) - A Go (golang) package for representing a list of errors as a single error.
 * [gopsutil](https://github.com/shirou/gopsutil) - A cross-platform library for retrieving process and system utilization(CPU, Memory, Disks, etc).
 * [jobs](https://github.com/albrow/jobs) - A persistent and flexible background jobs library.
 * [notify](https://github.com/rjeczalik/notify) - File system event notification library with simple API, similar to os/signal.