Add advice re Tiller version
@@ -12,6 +12,11 @@ helps with a few use cases:
- providing secrets (e.g., a password) to a chart that expects them as values
- using values files without inlining them into FluxHelmReleases
+**NB** It is advised that you deploy the operator alongside Tiller
+v2.10 or more recent. To properly support TLS, the operator now
+includes code from Helm v2.10, and this may have difficulty connecting
+to older versions of Tiller.
+
### Bug fixes
- Make `--tiller-tls-verify` work as intended, by giving better
