Add zhenghaoz/gorse (#2345)

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**Please provide package links to:**

- github.com repo: [zhenghaoz/gorse](https://github.com/zhenghaoz/gorse)
- godoc.org: [![GoDoc](https://godoc.org/github.com/zhenghaoz/gorse?status.svg)](https://godoc.org/github.com/zhenghaoz/gorse)
- goreportcard.com: [![Go Report Card](https://goreportcard.com/badge/github.com/zhenghaoz/gorse)](https://goreportcard.com/report/github.com/zhenghaoz/gorse)
- coverage service link: [![codecov](https://codecov.io/gh/zhenghaoz/gorse/branch/master/graph/badge.svg)](https://codecov.io/gh/zhenghaoz/gorse)


Very good coverage

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README.md

@@ -896,6 +896,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [goml](https://github.com/cdipaolo/goml) - On-line Machine Learning in Go.
 * [goRecommend](https://github.com/timkaye11/goRecommend) - Recommendation Algorithms library written in Go.
 * [gorgonia](https://github.com/chewxy/gorgonia) - graph-based computational library like Theano for Go that provides primitives for building various machine learning and neural network algorithms.
+* [gorse](https://github.com/zhenghaoz/gorse) - A High Performance Recommender System Package based on Collaborative Filtering for Go.
 * [goscore](https://github.com/asafschers/goscore) - Go Scoring API for PMML.
 * [gosseract](https://github.com/otiai10/gosseract) - Go package for OCR (Optical Character Recognition), by using Tesseract C++ library.
 * [libsvm](https://github.com/datastream/libsvm) - libsvm golang version derived work based on LIBSVM 3.14.