adding ansible types in documentation (#303)

Signed-off-by: Modular Magician <magic-modules@google.com>

plugins/modules/gcp_compute_target_tcp_proxy.py

@@ -52,6 +52,7 @@ options:
     description:
     - An optional description of this resource.
     required: false
+    type: str
   name:
     description:
     - Name of the resource. Provided by the client when the resource is created. The
@@ -61,12 +62,14 @@ options:
       characters must be a dash, lowercase letter, or digit, except the last character,
       which cannot be a dash.
     required: true
+    type: str
   proxy_header:
     description:
     - Specifies the type of proxy header to append before sending data to the backend,
       either NONE or PROXY_V1. The default is NONE.
     - 'Some valid choices include: "NONE", "PROXY_V1"'
     required: false
+    type: str
   service:
     description:
     - A reference to the BackendService resource.
@@ -76,6 +79,7 @@ options:
       name-of-resource` to a gcp_compute_backend_service task and then set this service
       field to "{{ name-of-resource }}"'
     required: true
+    type: dict
 extends_documentation_fragment: gcp
 notes:
 - 'API Reference: U(https://cloud.google.com/compute/docs/reference/v1/targetTcpProxies)'