Add instruction for token

Author: dgarros

.travis.yml

@@ -10,6 +10,9 @@ env:
   matrix:
   - NETBOX_VER=v2.8.3
   - NETBOX_VER=master
+# Encrypted value for PYPI_TOKEN, this secret has been generated with the following command
+#   travis encrypt PYPI_TOKEN=<value> --add env.global --com
+# Might need to update it once the repo is publish (travis-ci.org vs travis-ci.com)
   global:
     secure: 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
 services: