Fix a sentence in architecture.mdx

The words "can be" were missing

website/content/docs/internals/architecture.mdx

@@ -45,7 +45,7 @@ key.
 [![Vault Shamir Secret Sharing Algorithm](/img/vault-shamir-secret-sharing.svg)](/img/vault-shamir-secret-sharing.svg)
 
 The number of shares and the minimum threshold required can both be specified.
-Shamir's technique can be disabled, and the master key used directly for
+Shamir's technique can be disabled, and the master key can be used directly for
 unsealing. Once Vault retrieves the encryption key, it is able to decrypt the
 data in the storage backend, and enters the _unsealed_ state. Once unsealed,
 Vault loads all of the configured audit devices, auth methods, and secrets