Add routable field to process stats examples (#4962)

Author: kathap

docs/v3/source/includes/api_resources/_processes.erb

@@ -218,6 +218,7 @@
       "index": 0,
       "instance_guid": "e49f448e-54d2-4c33-61a3-5335",
       "state": "RUNNING",
+      "routable": true,
       "usage": {
         "time": "2016-03-23T23:17:30.476314154Z",
         "cpu": 0.00038711029163348665,
@@ -248,6 +249,7 @@
       "type": "web",
       "index": 1,
       "state": "STARTING",
+      "routable": false,
       "usage": {
         "cpu": 0,
         "cpu_entitlement": 0,