add examples of subaccounts resource use (#143)

* add examples of subaccounts resource use

* Change "SDK" to "client library" in subaccount examples

examples/subaccounts/create_subaccount.js

@@ -0,0 +1,22 @@
+'use strict';
+
+var key = 'YOURAPIKEY'
+  , SparkPost = require('sparkpost')
+  , client = new SparkPost(key)
+  , options = {
+    name: 'Test Subaccount'
+    , keyLabel: 'Test Subaccount key'
+    , keyGrants: [
+      'smtp/inject'
+      , 'transmissions/modify'
+    ]
+  };
+
+client.subaccounts.create(options, function(err, res) {
+  if (err) {
+    console.log(err);
+  } else {
+    console.log(res);
+    console.log('Congrats you can use our client library!');
+  }
+});

examples/subaccounts/get_all_subaccounts.js

@@ -0,0 +1,14 @@
+'use strict';
+
+var key = 'YOURAPIKEY'
+  , SparkPost = require('sparkpost')
+  , client = new SparkPost(key);
+
+client.subaccounts.all(function(err, res) {
+  if (err) {
+    console.log(err);
+  } else {
+    console.log(res.body);
+    console.log('Congrats you can use our client library!');
+  }
+});

examples/subaccounts/get_subaccount.js

@@ -0,0 +1,14 @@
+'use strict';
+
+var key = 'YOURAPIKEY'
+  , SparkPost = require('sparkpost')
+  , client = new SparkPost(key);
+
+client.subaccounts.find(123, function(err, res) {
+  if (err) {
+    console.log(err);
+  } else {
+    console.log(res.body);
+    console.log('Congrats you can use our client library!');
+  }
+});

examples/subaccounts/update_subaccount.js

@@ -0,0 +1,19 @@
+'use strict';
+
+var key = 'YOURAPIKEY'
+  , SparkPost = require('sparkpost')
+  , client = new SparkPost(key)
+  , options = {
+    subaccountId: 123
+    , name: 'Test Subaccount'
+    , status: 'suspended'
+  };
+
+client.subaccounts.update(options, function(err, res) {
+  if (err) {
+    console.log(err);
+  } else {
+    console.log(res.body);
+    console.log('Congrats you can use our client library!');
+  }
+});