Fix indentation and types cf template parameters

docs/getting-started-guides/aws/cloudformation-template.json

@@ -62,26 +62,26 @@
     },
     "KeyPair": {
       "Description": "The name of an EC2 Key Pair to allow SSH access to the instance.",
-      "Type": "String"
+      "Type": "AWS::EC2::KeyPair::KeyName"
     },
     "VpcId": {
-       "Description": "The ID of the VPC to launch into.",
-       "Type": "String",
-       "Default": ""
-     },
-     "SubnetId": {
-       "Description": "The ID of the VPC to launch into (that must be within the supplied VPC)",
-       "Type": "String",
-       "Default": ""
-     },
-     "SubnetAZ": {
-       "Description": "The availability zone of the subnet supplied (for example eu-west-1a)",
-       "Type": "String",
-       "Default": ""
-     }
+      "Description": "The ID of the VPC to launch into.",
+      "Type": "AWS::EC2::VPC::Id",
+      "Default": ""
+    },
+    "SubnetId": {
+      "Description": "The ID of the subnet to launch into (that must be within the supplied VPC)",
+      "Type": "AWS::EC2::Subnet::Id",
+      "Default": ""
+    },
+    "SubnetAZ": {
+      "Description": "The availability zone of the subnet supplied (for example eu-west-1a)",
+      "Type": "String",
+      "Default": ""
+    }
   },
   "Conditions": {
-     "UseEC2Classic": {"Fn::Equals": [{"Ref": "VpcId"}, ""]}
+    "UseEC2Classic": {"Fn::Equals": [{"Ref": "VpcId"}, ""]}
   },
   "Resources": {
     "KubernetesSecurityGroup": {