README: note that -f can be invoked multiple times

README.md

@@ -109,7 +109,7 @@ official compatibility chart below.
 Refer to `kubernetes-deploy --help` for the authoritative set of options.
 
 - `--template-dir=DIR`: Used to set the deploy directory. Set `$ENVIRONMENT` instead to use `config/deploy/$ENVIRONMENT`. This flag also supports reading from STDIN. You can do this by using `--template-dir=-`. Example: `cat templates_from_stdin/*.yml | kubernetes-deploy ns ctx --template-dir=-`.
-- (alpha feature) `-f [PATHS]`: Accepts a comma-separated list of directories and/or filenames to specify the set of directories/files that will be deployed (use `-` to read from STDIN). Cannot be combined with `--template-dir`. Example: `cat templates_from_stdin/*.yml | kubernetes-deploy ns ctx -f -,path/to/dir,path/to/file.yml`
+- (alpha feature) `-f [PATHS]`: Accepts a comma-separated list of directories and/or filenames to specify the set of directories/files that will be deployed (use `-` to read from STDIN). Can be invoked multiple times. Cannot be combined with `--template-dir`. Example: `cat templates_from_stdin/*.yml | kubernetes-deploy ns ctx -f -,path/to/dir,path/to/file.yml`
 - `--bindings=BINDINGS`: Makes additional variables available to your ERB templates. For example, `kubernetes-deploy my-app cluster1 --bindings=color=blue,size=large` will expose `color` and `size`.
 - `--no-prune`: Skips pruning of resources that are no longer in your Kubernetes template set. Not recommended, as it allows your namespace to accumulate cruft that is not reflected in your deploy directory.
 - `--max-watch-seconds=seconds`: Raise a timeout error if it takes longer than _seconds_ for any