Add naming conv. link

README.md

@@ -19,6 +19,7 @@ git pull
 - [Javadoc d'Oracle](https://docs.oracle.com/en/java/javase/11/docs/api/index.html)
 - [Maven in 5 minutes](https://maven.apache.org/guides/getting-started/maven-in-five-minutes.html)
 - Bonne documentation sur git : [git-scm : les bases](https://git-scm.com/book/fr/v1/Les-bases-de-Git-Enregistrer-des-modifications-dans-le-d%C3%A9p%C3%B4t)
+- [Conventions de nommage Java](https://www.oracle.com/technetwork/java/codeconventions-135099.html)