Add 'helm' to export format list in CLI docs
@@ -721,7 +721,7 @@ Exports the package to the specified format
**ARGS**
- <FORMAT> The export format (ex: aci, cf, docker, kubernetes, mesos, or tar)
+ <FORMAT> The export format (ex: aci, cf, docker, helm, kubernetes, mesos, or tar)
<PKG_IDENT> A package identifier (ex: core/redis, core/busybox-static/1.42.2) or filepath
to a Habitat Artifact (ex: /home/acme-redis-3.0.7-21120102031201-x86_64-linux.hart)
