Update docs to address feedback

Author: mtdowling

docs/source/spec/aws-json-protocols.rst

@@ -26,6 +26,8 @@ Trait selector
     ``service``
 Value type
     Annotation trait.
+See
+    `Protocol tests <https://github.com/awslabs/smithy/tree/meta-protocol-and-auth/smithy-aws-protocol-tests/model>`_
 
 .. tabs::
 

docs/source/spec/aws-query-protocol.rst

@@ -25,6 +25,8 @@ Trait selector
     ``service``
 Value type
     Annotation trait.
+See
+    `Protocol tests <https://github.com/awslabs/smithy/tree/meta-protocol-and-auth/smithy-aws-protocol-tests/model>`_
 
 .. tabs::
 

docs/source/spec/aws-restjson1-protocol.rst

@@ -25,6 +25,8 @@ Trait selector
     ``service``
 Value type
     Annotation trait.
+See
+    `Protocol tests <https://github.com/awslabs/smithy/tree/meta-protocol-and-auth/smithy-aws-protocol-tests/model>`_
 
 .. tabs::
 

docs/source/spec/aws-restxml-protocol.rst

@@ -25,6 +25,8 @@ Trait selector
     ``service``
 Value type
     Annotation trait.
+See
+    `Protocol tests <https://github.com/awslabs/smithy/tree/meta-protocol-and-auth/smithy-aws-protocol-tests/model>`_
 
 .. tabs::
 

docs/source/spec/core.rst

@@ -4926,7 +4926,7 @@ Summary
     that are marked with this trait are applied to service shapes to
     indicate how a client can authenticate with the service.
 Trait selector
-    ``service``
+    ``[trait|trait]``
 Value type
     Annotation trait.
 
@@ -5162,7 +5162,7 @@ Trait selector
 
     *Service or operation shapes*
 Value type
-    This trait contains a priority ordered list of string values that
+    This trait contains a priority ordered list of unique string values that
     reference authentication scheme shape IDs defined on a service
     shape.