Update README

README.md

@@ -1,12 +1,74 @@
 # Hydrawise API
 
-This is a client for the [Hydrawise](https://hydrawise.com/) API. Hydrawise is an internet-controlled home irrigation system.
+This is a client for the [Hydrawise API](https://hydrawise.com/support/using-api/). [Hydrawise](https://hydrawise.com) is an internet-controlled home irrigation system.
 
 It provides access to the following endpoints:
-* Status Schedule
-* Customer Details
-* Set Controller
-* Set Zone
+* [Customer Details](#customer-details)
+* [Status Schedule](#status-schedule)
+* [Set Controller](#set-controller)
+* [Set Zone](#set-zone)
+
+## Usage
+
+### Initial Setup
+
+```js
+import Hydrawise from 'hydrawise-api';
+const hydrawise = new Hydrawise(YOUR_API_KEY);
+```
+
+### Customer Details
+
+Get cusetomer info.
+
+```js
+hydrawise.customerdetails()
+  .then(data => console.log(data))
+  .catch(error => console.log(error));
+```
+
+### Status Schedule
+
+Get the status of a controller. You can pass the param `hydrawise_all` or a specific tag or leave empty for the current controller. The second parameter is how far in advance (in hours) you want to get the schedule, and it will default to the maximum of 168.
+
+```js
+hydrawise.statusschedule()
+  .then(data => console.log(data))
+  .catch(error => console.log(error));
+```
+
+### Set Controller
+
+Set a controller for controller-specific commands.
+
+**_Note: This endpoint seems to not respond with any data, so a non-error is a "pass" I guess?_**
+
+```js
+hydrawise.setcontroller(controller_id)
+  .then()
+  .catch(error => console.log(error));
+```
+
+### Set Zone
+
+This is how you set a zone to run, suspend, or stop. The params are an action and additional params `period_id`, `custom` for a duration in seconds, and `relay_id` for a specific zone.
+
+```js
+// run all for 10 minutes
+hydrawise.setzone('runall', {period_id: '666', custom: '600'})
+  .then(data => console.log(data))
+  .catch(error => console.log(error));
+
+// stop all
+hydrawise.setzone('stopall')
+  .then(data => console.log(data))
+  .catch(error => console.log(error));
+
+// run zone for 5 minutes
+hydrawise.setzone('run', {period_id: '123', custom: '300', relay_id: your_relay_id})
+  .then(data => console.log(data))
+  .catch(error => console.log(error));
+```
 
 ------