Update certificate-scenarios.md

Author: jlichwa

articles/key-vault/certificates/certificate-scenarios.md

@@ -12,7 +12,7 @@ ms.author: mbaldwin
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 # Get started with Key Vault certificates
-This guideline help you get started with certificate management in Key Vault.
+This guideline helps you get started with certificate management in Key Vault.
 
 List of scenarios covered here:
 - Creating your first Key Vault certificate