Merge pull request #147 from alliander-opensource/fix/COC-link-blank

Fix COC link

Author: TonyXiang8787

docs/CODE_OF_CONDUCT.md

@@ -69,4 +69,4 @@ Project maintainers who do not follow or enforce the Code of Conduct in good fai
 
 This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
 available at
-[](https://www.contributor-covenant.org/version/1/4/code-of-conduct.html)
+[https://www.contributor-covenant.org/version/1/4/code-of-conduct.html](https://www.contributor-covenant.org/version/1/4/code-of-conduct.html)