Merge branch 'master' of github.com:PolyMathOrg/DataFrame

Author: olekscode

README.md

@@ -1,4 +1,8 @@
-# DataFrame for Pharo [![Build Status](https://travis-ci.org/PolyMathOrg/DataFrame.svg?branch=master)](https://travis-ci.org/PolyMathOrg/DataFrame)
+# DataFrame for Pharo
+[![Project Status: WIP – Initial development is in progress, but there has not yet been a stable, usable release suitable for the public.](http://www.repostatus.org/badges/latest/wip.svg)](http://www.repostatus.org/#wip)
+[![Build Status](https://travis-ci.org/PolyMathOrg/DataFrame.svg?branch=master)](https://travis-ci.org/PolyMathOrg/DataFrame)
+[![Build status](https://ci.appveyor.com/api/projects/status/1wdnjvmlxfbml8qo?svg=true)](https://ci.appveyor.com/project/olekscode/dataframe)
+[![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/PolyMathOrg/DataFrame/master/LICENSE)
 
 In Smalltalk despite the fact that many important analysis tools are already present (for example, in the [PolyMath](https://github.com/PolyMathOrg/PolyMath) library), we are still missing this essential part of the data science toolkit. These specialized data structures for tabular data sets can provide us with a simple and powerful API for summarizing, cleaning, and manipulating a wealth of data sources that are currently cumbersome to use. The DataFrame and DataSeries collections, stored in this repository, are specifically designed for working with structured data.