added ohloh statistics

README.md

@@ -3,9 +3,11 @@ Open62541
 
 An open-source communication stack implementation of OPC UA (OPC Unified Architecture) licensed under LGPL + static linking exception.
 
+[![Ohloh Project Status](https://www.ohloh.net/p/open62541/widgets/project_thin_badge.gif)](https://www.ohloh.net/p/open62541)
 [![Build Status](https://travis-ci.org/acplt/open62541.png?branch=master)](https://travis-ci.org/acplt/open62541)
 [![Coverity Scan Build Status](https://scan.coverity.com/projects/1864/badge.svg)](https://scan.coverity.com/projects/1864)
 
+
 ## Getting dependencies
 ### Ubuntu
 ##### Getting gcc toolchain: