README.md in sigh-1.0.0.beta2 vs README.md in sigh-1.0.0.beta3

- old
+ new

@@ -173,9 +173,11 @@
 
 - `SIGH_CERTIFICATE` (The name of the certificate to use)
 - `SIGH_CERTIFICATE_ID` (The ID of the certificate)
 - `SIGH_CERTIFICATE_EXPIRE_DATE` (The expire date of the certificate)
 
+As always, run `sigh --help` to get a list of all variables.
+
 If you're using [cert](https://github.com/KrauseFx/cert) in combination with [fastlane](https://github.com/KrauseFx/fastlane) the signing certificate will automatically be selected for you. (make sure to run `cert` before `sigh`)
 
 `sigh` will store the `UDID` of the generated provisioning profile in the environment: `SIGH_UDID`.
 
 # How does it work?