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

Co-authored-by: Mike Brown <[email protected]>

Author: byako

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

@@ -69,7 +69,7 @@ Items marked with (R) are required *prior to targeting to a milestone / release*
 ## Summary
 
 Introduce new CRI API call for downloading a container image with possibility of pulling progress
-reports being sent back to requestor and / or no-progress timeout. It shold be possible to use
+reports being sent back to requestor and / or no-progress timeout. It should be possible to use
 both the progress reporting and no-progress timeout together as well as separately. For instance,
 the runtime should send back a message every N seconds of image pulling progress with information
 on how much data was downloaded and what is the current estimated total size of download, and