Update keps/sig-node/3542-cri-image-pulling-with-progress-notification/README.md

Co-authored-by: Tim Bannister <[email protected]>

Author: byako

keps/sig-node/3542-cri-image-pulling-with-progress-notification/README.md

@@ -270,7 +270,7 @@ Suggested new Kubelet config fields are these:
        NoProgressTimeout int32 `json:"NoProgressTimeout,omitempty"`
 
 
-For exactl API objects structure, see [API design Details](#design-details) below
+For exact API objects structure, see [API design Details](#design-details) below.
 
 ### User Stories (Optional)