Merge pull request #20 from tkf/docs

Tweak README.md

Author: jw3126

README.md

@@ -4,12 +4,14 @@
 [![Dev](https://img.shields.io/badge/docs-dev-blue.svg)](https://JuliaObjects.github.io/ConstructionBase.jl/dev)
 [![Build Status](https://travis-ci.com/JuliaObjects/ConstructionBase.jl.svg?branch=master)](https://travis-ci.com/JuliaObjects/ConstructionBase.jl)
 [![Codecov](https://codecov.io/gh/JuliaObjects/ConstructionBase.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/JuliaObjects/ConstructionBase.jl)
+[![GitHub stars](https://img.shields.io/github/stars/JuliaObjects/ConstructionBase.jl?style=social)](https://github.com/JuliaObjects/ConstructionBase.jl)
 
 ConstructionBase is a very lightwight package, that provides primitive functions for construction of objects:
 ```julia
 setproperties(obj::MyType, patch::NamedTuple)
 constructorof(MyType)
 ```
-These functions can be overloaded and doing so provides interoperability the following packages:
+These functions can be overloaded and doing so provides interoperability with the following packages:
 * [Flatten.jl](https://github.com/rafaqz/Flatten.jl)
 * [Setfield.jl](https://github.com/jw3126/Setfield.jl)
+* [BangBang.jl](https://github.com/tkf/BangBang.jl)