update instructions for greenlock v4

README.md

@@ -1,4 +1,4 @@
-# [acme-dns-01-duckdns](https://git.rootprojects.org/root/acme-dns-01-duckdns.js) | a [Root](https://rootrpojects.org) project
+# [acme-dns-01-duckdns](https://git.rootprojects.org/root/acme-dns-01-duckdns.js) | a [Root](https://rootprojects.org) project
 
 DuckDNS + Let's Encrypt for Node.js
 
@@ -14,7 +14,9 @@ Passes [acme-dns-01-test](https://git.rootprojects.org/root/acme-dns-01-test.js)
 -   Quality
     -   [x] node v6 compatible VanillaJS
     -   [x] < 100 lines of code
-  - [x] **Zero Dependencies**
+    -   [x] **Zero External Dependencies**\*
+
+<small>\* just `@root/request` which is also a Root project and has no dependencies at all</small>
 
 # Install
 
@@ -28,26 +30,25 @@ Register and DuckDNS Domain and Save the API Token:
 
 # Usage
 
-First you create an instance with your credentials:
-
-```js
-var dns01 = require('acme-dns-01-duckdns').create({
-	baseUrl: 'https://www.duckdns.org/update', // default
-	token: 'xxxx'
-});
-```
-
-Then you can use it with any compatible ACME library,
+Then you can use this with any compatible ACME library,
 such as Greenlock.js or ACME.js.
 
-### Greenlock.js
+### Greenlock CLI
+
+```bash
+npx greenlock defaults --challenge-dns-01 acme-dns-01-duckdns --challenge-dns-01-token xxxx
+```
+
+### Greenlock API
 
 ```js
-var Greenlock = require('greenlock-express');
-var greenlock = Greenlock.create({
+greenlock.manager.defaults({
 	challenges: {
-		'dns-01': dns01
-		// ...
+		'dns-01': {
+			module: 'acme-dns-01-duckdns',
+	        baseUrl: 'https://www.duckdns.org/update', // default
+			token: 'xxxxxxx'
+		}
 	}
 });
 ```
@@ -58,11 +59,26 @@ documentation for more details.
 
 ### ACME.js
 
+First you create an instance with your credentials:
+
 ```js
-// TODO
+var dns01 = require('acme-dns-01-duckdns').create({
+	baseUrl: 'https://www.duckdns.org/update', // default
+	token: 'xxxx'
+});
 ```
 
-See the [ACME.js](https://git.rootprojects.org/root/acme-v2.js) for more details.
+```js
+acme.certificates.create({
+	account,
+	accountKey,
+	csr,
+	domains,
+	challenges: { 'dns-01': dns01 }
+});
+```
+
+See the [ACME.js](https://git.rootprojects.org/root/acme.js) for more details.
 
 ### Build your own
 

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "acme-dns-01-duckdns",
-	"version": "3.0.0",
+	"version": "3.0.1",
 	"description": "DuckDNS for Let's Encrypt / ACME dns-01 challenges with ACME.js and Greenlock.js",
 	"main": "index.js",
 	"files": [