Update changelog URL

Author: leslitagordita

src/content/changelog/4-78-2020-10-19-2020.md

@@ -8,4 +8,4 @@ changelog:
 
 ### Changed
 - The `cvv` field in the Credit Card Add/Edit ([POST
-https://api.linode.com/v4/account/credit-card](https://developers.linode.com/api/v4/account-credit-card#post)) endpoint is now **required**. 
+https://api.linode.com/v4/account/credit-card](https://www.linode.com/docs/api/account/#credit-card-addedit)) endpoint is now **required**.