Fixing AZ SecretStore typos

Signed-off-by: Gustavo Carvalho <gustavo.carvalho@container-solutions.com>

docs/snippets/azkv-secret-store-mi.yaml

@@ -7,7 +7,7 @@ spec:
     # provider type: azure keyvault
     azurekv:
       authType: ManagedIdentity
-      # Optionally set the Id of the Managed Identity, if multiple identities is assignet to external-secrets operator
+      # Optionally set the Id of the Managed Identity, if multiple identities are assigned to external-secrets operator
       identityId: "<MI_clientId>"
       # URL of your vault instance, see: https://docs.microsoft.com/en-us/azure/key-vault/general/about-keys-secrets-certificates
       vaultUrl: "https://my-keyvault-name.vault.azure.net"