DOCSP-13972 clarify keyID array of single UUID

Author: andf-mongodb

source/reference/security-client-side-automatic-json-schema.txt

@@ -229,12 +229,13 @@ and ``taxid-short`` fields for write or read operations to the
 
 .. autoencryptkeyword:: encrypt.keyId
 
-  *Array of UUID*
+  *Array of single UUID*
 
   The UUID of the data encryption key to use for encrypting field
-  values. Specify *one* string inside the array. The UUID is a BSON
-  `binary data <http://bsonspec.org/spec.html>`_ element of subtype
-  ``4``.
+  values. The UUID is a BSON `binary data
+  <http://bsonspec.org/spec.html>`_ element of subtype ``4``.
+
+  Specify *one* string inside the array.
 
   If omitted, :ref:`mongocryptd` checks the full tree of parent
   fields for the nearest 
@@ -327,15 +328,16 @@ and ``taxid-short`` fields for write or read operations to the
 
   *Array of single UUID*
 
-  The UUID of a data encryption key. If an 
-  :autoencryptkeyword:`encrypt` object is missing the 
+  The UUID of a data encryption key. The UUID is a BSON `binary data
+  <http://bsonspec.org/spec.html>`_ element of subtype ``4``.
+  
+  Specify *one* string inside the array.
+
+  If an :autoencryptkeyword:`encrypt` object is missing the 
   :autoencryptkeyword:`~encrypt.keyId` field, ``mongocryptd``
   searches the entire tree of parent objects to locate 
   an :autoencryptkeyword:`encryptMetadata` object that
   specifies :autoencryptkeyword:`encryptMetadata.keyId`.
-
-  The UUID is a BSON `binary data <http://bsonspec.org/spec.html>`_
-  element of subtype ``4``.
 
   The data encryption key *must* exist in the key vault specified as
   part of the auto encryption :ref:`configuration options