NO-JIRA: have github commit log display auto-link ARTEMIS Jira project references

This closes apache#4621

Author: hboutemy

.asf.yaml

@@ -41,6 +41,8 @@ github:
     merge:   false
     # enable rebase button:
     rebase:  true
+  autolink_jira:
+    - ARTEMIS
 notifications:
   commits:      [email protected]
   issues:       [email protected]