Added build status badge to README

Author: Kyran Rana

README.md

@@ -1,3 +1,5 @@
+![Java CI with Maven](https://github.com/KyranRana/log-extract-filterer-java/workflows/Java%20CI%20with%20Maven/badge.svg)
+
 # Log Extract Filterer
 
 This is my solution to the Connect Group ITG test.
@@ -20,4 +22,4 @@ REQUEST_TIMESTAMP,COUNTRY_CODE,RESPONSE_TIME
 
 The features which you must implement have been prototyped in the class com.connectgroup.DefaultLogExtractFilterer. You must implement the
 features in this class without changing the signatures of any methods or add any new maven dependencies. You must also provide
-evidence that the features you have implemented work correctly.
+evidence that the features you have implemented work correctly.