Fix CODE_OF_CONDUCT.md links

Links at the bottom of file aren't formatted properly to display in markdown

Author: danrose499

CODE_OF_CONDUCT.md

@@ -34,6 +34,6 @@ This Code of Conduct applies both within project spaces and in public spaces whe
 individual is representing the project or its community.
 
 This Code of Conduct is adapted from the
-https://contributor-covenant.org[Contributor Covenant], version 1.3.0, available at
-https://contributor-covenant.org/version/1/3/0/[contributor-covenant.org/version/1/3/0/] and https://github.com/spring-projects/spring-boot/blob/master/CODE_OF_CONDUCT.adoc[spring-boot
-Contributor Code of Conduct]
+[Contributor Covenant](https://contributor-covenant.org), version 1.3.0, available at
+[contributor-covenant.org/version/1/3/0/](https://contributor-covenant.org/version/1/3/0/) and [spring-boot
+Contributor Code of Conduct](https://github.com/spring-projects/spring-boot/blob/master/CODE_OF_CONDUCT.adoc)