Update content/en/docs/reference/using-api/deprecation-guide.md

Co-authored-by: Jordan Liggitt <[email protected]>

Author: Rohan Kapse

content/en/docs/reference/using-api/deprecation-guide.md

@@ -35,7 +35,7 @@ The **flowcontrol.apiserver.k8s.io/v1beta2** API version of FlowSchema and Prior
 
 ### v1.27
 
-The **v1.27** release has stopped serving the following deprecated API versions post release:
+The **v1.27** release stopped serving the following deprecated API versions:
 
 #### CSIStorageCapacity {#csistoragecapacity-v127}