codecov added

.travis.yml

@@ -7,5 +7,8 @@ install:
   - python3 setup.py build
   - python3 setup.py install
   - pip3 install -r requirements-dev.txt
+  - pip3 install codecov
 script:
   - py.test --cov=./fact_helper_file
+after_success:
+- codecov
\ No newline at end of file

README.md

 # FACT helper file
 
 [![Build Status](https://travis-ci.com/fkie-cad/fact_helper_file.svg?branch=master)](https://travis-ci.com/fkie-cad/fact_helper_file)
+[![codecov](https://codecov.io/gh/fkie-cad/fact_helper_file/branch/master/graph/badge.svg)](https://codecov.io/gh/fkie-cad/fact_helper_file)
 
 This library offers two functions: