Add k8s cluster as supported project resource (#568)

* Add k8s cluster as supported project resource

* Undo weird auto formatting

Author: scotchneat

specification/DigitalOcean-public.v2.yaml

@@ -327,36 +327,37 @@ tags:
       valid URN has the following format: `do:resource_type:resource_id`. The
       following resource types are supported:
 
-      Resource Type | Example URN
-      --------------|------------
-      Database      | `do:dbaas:83c7a55f-0d84-4760-9245-aba076ec2fb2`
-      Domain        | `do:domain:example.com`
-      Droplet       | `do:droplet:4126873`
-      Floating IP   | `do:floatingip:192.168.99.100`
-      Load Balancer | `do:loadbalancer:39052d89-8dd4-4d49-8d5a-3c3b6b365b5b`
-      Space         | `do:space:my-website-assets`
-      Volume        | `do:volume:6fc4c277-ea5c-448a-93cd-dd496cfef71f`
+      Resource Type      | Example URN
+      -------------------|------------
+      Database           | `do:dbaas:83c7a55f-0d84-4760-9245-aba076ec2fb2`
+      Domain             | `do:domain:example.com`
+      Droplet            | `do:droplet:4126873`
+      Floating IP        | `do:floatingip:192.168.99.100`
+      Kubernetes Cluster | `do:kubernetes:bd5f5959-5e1e-4205-a714-a914373942af`
+      Load Balancer      | `do:loadbalancer:39052d89-8dd4-4d49-8d5a-3c3b6b365b5b`
+      Space              | `do:space:my-website-assets`
+      Volume             | `do:volume:6fc4c277-ea5c-448a-93cd-dd496cfef71f`
 
       ### Resource Status Codes
 
       When assigning and retrieving resources in projects, a `status` attribute
       is returned that indicates if a resource was successfully retrieved or
       assigned. The status codes can be one of the following:
 
-      Status Code | Explanation
-      ------------|------------
-      `ok`          | There was no problem retrieving or assigning a resource.
-      `not_found`   | The resource was not found.
-      `assigned`    | The resource was successfully assigned.
+      Status Code        | Explanation
+      -------------------|------------
+      `ok`               | There was no problem retrieving or assigning a resource.
+      `not_found`        | The resource was not found.
+      `assigned`         | The resource was successfully assigned.
       `already_assigned` | The resource was already assigned.
       `service_down`     | There was a problem retrieving or assigning a resource. Please try again.
 
   - name: Projects
     description: >-
-     Projects allow you to organize your resources into groups that fit the way
-     you work. You can group resources (like Droplets, Spaces, load balancers,
-     domains, and floating IPs) in ways that align with the applications
-     you host on DigitalOcean.
+      Projects allow you to organize your resources into groups that fit the way
+      you work. You can group resources (like Droplets, Spaces, load balancers,
+      domains, and floating IPs) in ways that align with the applications
+      you host on DigitalOcean.
 
   - name: Regions
     description: Provides information about DigitalOcean data center regions.
@@ -503,11 +504,11 @@ paths:
   /v2/apps/propose:
     post:
       $ref: 'resources/apps/propose_app.yml'
-  
+
   /v2/apps/{app_id}/alerts:
     get:
       $ref: 'resources/apps/list_alerts.yml'
-  
+
   /v2/apps/{app_id}/alerts/{alert_id}/destinations:
     post:
       $ref: 'resources/apps/assign_alert_destinations.yml'