Add link to syntax checker.

rouilj · rouilj · commit cc66b61096fc · 2021-09-06T18:08:14.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,3 +1,6 @@
+# check syntax using:
+# https://config.travis-ci.com/explore
+
 os: linux
 
 language: python
