Update README.md

Closes issue #8.

README.md

@@ -1,8 +1,21 @@
 # BoundingSphere
 
-[![Build Status](https://travis-ci.org/JuliaFEM/BoundingSphere.jl.svg?branch=master)](https://travis-ci.org/JuliaFEM/BoundingSphere.jl)
-[![codecov.io](https://codecov.io/github/JuliaFEM/BoundingSphere.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaFEM/BoundingSphere.jl?branch=master)
+[![][travis-img]][travis-url]
+[![][pkg-0.6-img]][pkg-0.6-url]
+[![][pkg-0.7-img]][pkg-0.7-url]
+[![][coveralls-img]][coveralls-url]
+[![][docs-stable-img]][docs-stable-url]
+[![][docs-latest-img]][docs-latest-url]
+[![][issues-img]][issues-url]
+
+Package contains algorithms to calculate smallest enclosing sphere for a given
+set of points in N dimensions.
+
+BoundingSphere.jl is a complete rewrite from scratch of [Miniball.jl](https://github.com/JuliaFEM/Miniball.jl).
+See [Miniball.jl issue #28](https://github.com/JuliaFEM/Miniball.jl/issues/28).
+
 ## Usage
+
 ```julia
 using BoundingSphere
 
@@ -14,3 +27,27 @@ pts = [@SVector(randn(3)) for _ in 1:10] # use static arrays for performance
 algorithm = Ritter() # fast but inaccurate
 center, radius = boundingsphere(pts, algorithm) # customize algorithm
 ```
+
+[contrib-url]: https://juliafem.github.io/BoundingSphere.jl/latest/man/contributing/
+[discourse-tag-url]: https://discourse.julialang.org/tags/boundingsphere
+[gitter-url]: https://gitter.im/JuliaFEM/JuliaFEM.jl
+
+[docs-latest-img]: https://img.shields.io/badge/docs-latest-blue.svg
+[docs-latest-url]: https://juliafem.github.io/BoundingSphere.jl/latest
+
+[docs-stable-img]: https://img.shields.io/badge/docs-stable-blue.svg
+[docs-stable-url]: https://juliafem.github.io/BoundingSphere.jl/stable
+
+[travis-img]: https://travis-ci.org/JuliaFEM/BoundingSphere.jl.svg?branch=master
+[travis-url]: https://travis-ci.org/JuliaFEM/BoundingSphere.jl
+
+[coveralls-img]: https://coveralls.io/repos/github/JuliaFEM/BoundingSphere.jl/badge.svg?branch=master
+[coveralls-url]: https://coveralls.io/github/JuliaFEM/BoundingSphere.jl?branch=master
+
+[issues-img]: https://img.shields.io/github/issues/JuliaFEM/BoundingSphere.jl.svg
+[issues-url]: https://github.com/JuliaFEM/BoundingSphere.jl/issues
+
+[pkg-0.6-img]: http://pkg.julialang.org/badges/BoundingSphere_0.6.svg
+[pkg-0.6-url]: http://pkg.julialang.org/?pkg=BoundingSphere&ver=0.6
+[pkg-0.7-img]: http://pkg.julialang.org/badges/BoundingSphere_0.7.svg
+[pkg-0.7-url]: http://pkg.julialang.org/?pkg=BoundingSphere&ver=0.7