Update knn-vector.md (#6263)

Signed-off-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com>

_field-types/supported-field-types/knn-vector.md

@@ -7,7 +7,7 @@ parent: Supported field types
 has_math: true
 ---
 
-# k-NN vector 
+# k-NN vector field type
 
 The [k-NN plugin]({{site.url}}{{site.baseurl}}/search-plugins/knn/index/) introduces a custom data type, the `knn_vector`, that allows users to ingest their k-NN vectors into an OpenSearch index and perform different kinds of k-NN search. The `knn_vector` field is highly configurable and can serve many different k-NN workloads. In general, a `knn_vector` field can be built either by providing a method definition or specifying a model id.
 
@@ -266,4 +266,4 @@ else:
 
 return Byte(bval)
 ```
-{% include copy.html %}
+{% include copy.html %}