Fix create example indent in how-to.mdx

Author: RebeccaTamachiro

src/content/docs/secrets-store/manage-secrets/how-to.mdx

@@ -41,9 +41,9 @@ curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/secrets_store/sto
     "value":"<SECRET_VALUE>",
     "scopes":["workers"],
     "comment":""
-	},
+  },
   {
-		"name":"<MY_SECRET_NAME_2>",
+    "name":"<MY_SECRET_NAME_2>",
     "value":"<SECRET_VALUE>",
     "scopes":["workers"],
     "comment":""