updated readme

readme.md

 First module for docxtemplater.
 
+[![Build Status](https://travis-ci.org/open-xml-templating/docxtemplater-image-module.svg?branch=master&style=flat)](https://travis-ci.org/open-xml-templating/docxtemplater-image-module)
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+
 # Installation:
 
-You will need docxtemplater v1: `npm install docxtemplater@beta`
+You will need docxtemplater v1: `npm install docxtemplater`
 
 install this module: `npm install docxtemplater-image-module`