Minor edits

Author: kbatuigas

modules/reference/pages/rpk/rpk-security/rpk-security-secret-update.adoc

@@ -8,7 +8,7 @@ Scopes define the areas where the secret can be used. Available scopes are:
 - `redpanda_connect`
 - `redpanda_cluster`
 
-You can set one or both scopes on a secret. Updating a secret will overwrite its current scopes. 
+You can set one or both scopes on a secret. Updating a secret's scopes will overwrite its current scopes. 
 
 == Usage
 
@@ -26,7 +26,7 @@ To update the value of the secret:
 rpk security secret update --name NETT --value new_value
 ----
 
-To update the scope of secret to both `redpanda_connect` and `redpanda_cluster`:
+To update the scope of a secret to both `redpanda_connect` and `redpanda_cluster`:
 
 [,bash]
 ----