website: update docs for apply command

website/source/docs/commands/apply.html.markdown

@@ -23,6 +23,10 @@ The command-line flags are all optional. The list of available flags are:
 
 * `-no-color` - Disables output with coloring.
 
+* `-refresh=true` - Update the state for each resource prior to planning
+  and applying. This has no effect if a plan file is given directly to
+  apply.
+
 * `-state=path` - Path to the state file. Defaults to "terraform.tfstate".
 
 * `-state-out=path` - Path to write updated state file. By default, the