Merge pull request #17 from NETWAYS/docs

Update README.md

Author: widhalmt

README.md

@@ -1,5 +1,7 @@
 # ssh-logstash-pipeline
 
+[![CI](https://github.com/netways/ssh-logstash-pipeline/workflows/Logstash%20Syntax/badge.svg?event=push)](https://github.com/netways/ssh-logstash-pipeline/actions?query=workflow%3A%22Logstash+Syntax%22)
+
 ## Input and Output ##
 
 This pipeline does not provide inputs or outputs so you can configure whatever you need. Files named `input.conf` and `output.conf` will not interfere with updates via git, so name your files accordingly.