Update README

Author: mattkalina

README.md

@@ -8,34 +8,51 @@ modified to suit your own requirements.
 
 ## Example
 
+Instantiate an API client with a company name, username, and password:
+
 ```C#
 var client = new ApiClient("test", "username", "password");
 var inventory_client = new InventoryClient(client);
-Inventory inventory;
+```
 
-// Create inventory
-inventory = new Inventory();
+Create a new inventory item:
+
+```C#
+Inventory inventory = new Inventory();
 inventory.whse = "00";
 inventory.partNo = "TESTPART";
 inventory.type = InventoryType.Normal;
 inventory.status = InventoryStatus.Active;
 inventory.description = "Test Inventory";
 inventory = inventory_client.Create(inventory);
+```
+
+List inventory matching the query "TEST":
 
-// List inventory matching the query "TEST"
+```C#
 foreach (var i in inventory_client.List(0, 100, "TEST"))
 {
-    // i.id
+    Console.WriteLine(i.partNo);
 }
+```
 
-// Get inventory
+Retreive an inventory item by ID:
+
+```C#
 inventory = inventory_client.Fetch(inventory.id);
+```
+
+Update a field on an existing inventory item:
 
-// Update inventory
+```C#
 inventory.description = "New Description";
 inventory_client.Update(inventory.id, inventory);
+```
 
-// Delete inventory
+Delete an inventory item (if inventory is in use this will throw an
+`ApiException`):
+
+```C#
 inventory_client.Delete(inventory.id);
 ```