Issue #2, Issue #5: Migrate doc_fragments, fix missing types in docs.

plugins/modules/k8s_service.py

@@ -50,6 +50,7 @@ options:
     choices:
     - present
     - absent
+    type: str
   force:
     description:
     - If set to C(True), and I(state) is C(present), an existing object will be replaced.
@@ -91,6 +92,7 @@ options:
       - ClusterIP
       - LoadBalancer
       - ExternalName
+    type: str
   ports:
     description:
       - A list of ports to expose.