Merge pull request #8 from WikibaseSolutions/add-build-status

Add build status to README.md

Author: marijnvanwezel

README.md

@@ -1,5 +1,7 @@
 # php-cypher-dsl
 
+![Build status](https://github.com/WikibaseSolutions/php-cypher-dsl/actions/workflows/main.yml/badge.svg)
+
 The `php-cypher-dsl` library provides a way to construct advanced Cypher queries in an object-oriented and type-safe manner.
 
 ## Documentation