Added go report badge.

Author: umpc

README.md

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 # SortedMap
 
-[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap)
+[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![Go Report Card](https://goreportcard.com/badge/github.com/umpc/go-sortedmap)](https://goreportcard.com/report/github.com/umpc/go-sortedmap) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap)
 
 SortedMap is a simple library that provides a value-sorted ```map[interface{}]interface{}``` type and methods combined from Go 1 map and slice primitives.
 

asc/README.md

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 # Asc
 
-[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap/asc?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap/asc)
+[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![Go Report Card](https://goreportcard.com/badge/github.com/umpc/go-sortedmap)](https://goreportcard.com/report/github.com/umpc/go-sortedmap) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap/asc?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap/asc)
 
 Asc allows for a simple method of selecting an ascending insertion sort function for any of the supported types.
 

desc/README.md

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 # Desc
 
-[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap/desc?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap/desc)
+[![Build Status](https://travis-ci.org/umpc/go-sortedmap.svg?branch=master)](https://travis-ci.org/umpc/go-sortedmap) [![Coverage Status](https://codecov.io/github/umpc/go-sortedmap/badge.svg?branch=master)](https://codecov.io/github/umpc/go-sortedmap?branch=master) [![Go Report Card](https://goreportcard.com/badge/github.com/umpc/go-sortedmap)](https://goreportcard.com/report/github.com/umpc/go-sortedmap) [![GoDoc](https://godoc.org/github.com/umpc/go-sortedmap/desc?status.svg)](https://godoc.org/github.com/umpc/go-sortedmap/desc)
 
 Desc allows for a simple method of selecting a descending insertion sort function for any of the supported types.