Add codecov and build badges

Author: Daniel-Yonkov

README.md

@@ -1,4 +1,7 @@
 # http_build_query
+[![codecov](https://codecov.io/gh/Modularity-Bulgaria/http_build_query/branch/main/graph/badge.svg?token=HS160E15RY)](https://codecov.io/gh/Modularity-Bulgaria/http_build_query)
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/Modularity-Bulgaria/http_build_query/CI%20Build)
+
 Javascript port of PHP http_build_query
 
-WIP
+WIP - Added workflow