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README.md

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-# Parser and Interpreter for While Programs
+# Parser and Interpreter for While Programs [![Build Status](https://travis-ci.org/malteschmitz/WhileInterpreter.svg?branch=master)](https://travis-ci.org/malteschmitz/WhileInterpreter)
 
 Exemplary Java implementation of a _recursive decent parser_, an _abstract syntax tree (AST) data structure_ and a _structural recursive interpreter_ over this data structure.