update description for certificate type

Author: jlichwa

specification/keyvault/data-plane/Microsoft.KeyVault/preview/7.0/keyvault.json

@@ -4537,7 +4537,7 @@
         "cty": {
           "x-ms-client-name": "CertificateType",
           "type": "string",
-          "description": "Certificate Type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'"
+          "description": "Certificate type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'"
         },
         "cert_transparency": {
           "x-ms-client-name": "CertificateTransparency",

specification/keyvault/data-plane/Microsoft.KeyVault/stable/7.0/keyvault.json

@@ -4537,7 +4537,7 @@
         "cty": {
           "x-ms-client-name": "CertificateType",
           "type": "string",
-          "description": "Certificate Type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'"
+          "description": "Certificate type as supported by the provider (optional); for example 'OV-SSL', 'EV-SSL'"
         },
         "cert_transparency": {
           "x-ms-client-name": "CertificateTransparency",