Update README.md

Author: juliohm

README.md

@@ -1,4 +1,33 @@
-# PointPatterns
+# PointPatterns.jl
 
-[![Build Status](https://travis-ci.com/juliohm/PointPatterns.jl.svg?branch=master)](https://travis-ci.com/juliohm/PointPatterns.jl)
-[![Codecov](https://codecov.io/gh/juliohm/PointPatterns.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/juliohm/PointPatterns.jl)
+[![][travis-img]][travis-url] [![][codecov-img]][codecov-url]
+
+Many tools have been developed in spatial statistics to
+extract useful information from (marked) point clouds.
+This package provides methods for spatial point pattern
+analysis and synthesis including summary statistics and
+sampling algorithms.
+
+## Installation
+
+Get the latest stable release with Julia's package manager:
+
+```julia
+] add PointPatterns
+```
+
+## Usage
+
+This package is part of the [GeoStats.jl](https://github.com/juliohm/GeoStats.jl) framework.
+
+For examples of usage, please check the main documentation.
+
+## Asking for help
+
+If you have any questions, please contact our community on the [gitter channel](https://gitter.im/JuliaEarth/GeoStats.jl).
+
+[travis-img]: https://travis-ci.org/juliohm/PointPatterns.jl.svg?branch=master
+[travis-url]: https://travis-ci.org/juliohm/PointPatterns.jl
+
+[codecov-img]: https://codecov.io/gh/juliohm/PointPatterns.jl/branch/master/graph/badge.svg
+[codecov-url]: https://codecov.io/gh/juliohm/PointPatterns.jl