diff --git a/README.md b/README.md
index c1f88fb..0de87e2 100644
--- a/README.md
+++ b/README.md
@@ -65,12 +65,23 @@ var gl = Greenlock.create({
});
```
-| Parameter | Description |
-| ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| maintainerEmail | the developer contact for critical bug and security notifications |
-| maintainerUpdates | (default: false) receive occasional non-critical notifications |
-| subscriberEmail | the contact who agrees to the Let's Encrypt Subscriber Agreement and the Greenlock Terms of Service
this contact receives renewal failure notifications |
-| agreeToTerms | (default: false) either 'true' or a function that presents the Terms of Service and returns it once accepted |
+| Parameter | Description |
+| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| servername | the default servername to use for non-sni requests (many IoT clients) |
+| maintainerEmail | the developer contact for critical bug and security notifications |
+| maintainerUpdates | (default: false) receive occasional non-critical notifications |
+| maintainerPackage | if you publish your package for others to use, `require('./package.json').name` here |
+| maintainerPackageVersion | if you publish your package for others to use, `require('./package.json').version` here |
+| subscriberEmail | the contact who agrees to the Let's Encrypt Subscriber Agreement and the Greenlock Terms of Service
this contact receives renewal failure notifications |
+| agreeToTerms | (default: false) either 'true' or a function that presents the Terms of Service and returns it once accepted |
+| store | override the default storage module |
+| store.module | the name of your storage module |
+| store.xxxx | options specific to your storage module |
+| challenges['http-01'] | provide an http-01 challenge module |
+| challenges['dns-01'] | provide a dns-01 challenge module |
+| challenges['tls-alpn-01'] | provide a tls-alpn-01 challenge module |
+| challenges[type].module | the name of your challenge module |
+| challenges[type].xxxx | module-specific options |
### Add Approved Domains
@@ -130,15 +141,18 @@ TODO
-