README: Fix typo in build-badge url. (#116)

Author: rolandtritsch

README.md

@@ -472,5 +472,5 @@ This project is the result of a collaborative effort:
 | Nicolò Bidotti            | Big Data Laboratory, AgileLab S.r.L. (Italy)                                          |
 | Paolo Platter             | Big Data Laboratory, AgileLab S.r.L. (Italy)                                          |
 
-[build-badge]: https://github.com/agile-lap-dev/data-platform-shaper/actions/workflows/test.yml/badge.svg
+[build-badge]: https://github.com/agile-lab-dev/data-platform-shaper/actions/workflows/test.yml/badge.svg
 [scoverage-report]: https://github.com/scoverage