Copy and formatting edits for ssl_cert and ssl_key changelog entry.

Author: leslitagordita

src/content/changelog/4-69-0-2020-07-13.md

@@ -16,7 +16,11 @@ changelog:
 
 ### Changed
 
-- Error handling for _ssl_cert_ and _ssl_key_ values related to NodeBalancer Config Create ([POST /nodebalancers/{nodeBalancerId}/configs](https://developers.linode.com/api/v4/nodebalancers-node-balancer-id-configs/#post)) and Update Config ([PUT nodebalancers/{nodeBalancerId}/configs/{configId}](https://developers.linode.com/api/v4/nodebalancers-node-balancer-id-configs-config-id/#put)) endpoints has been updated. Error messages will now explain if a provided key is in an incorrect format.
+- Added improved error handling for the `ssl_cert` and `ssl_key` fields in the NodeBalancer collection. Error messages will now explain if a provided key is in an incorrect format. These fields are available from the following endpoints:
+
+  - Create Config ([POST /nodebalancers/{nodeBalancerId}/configs](https://developers.linode.com/api/v4/nodebalancers-node-balancer-id-configs/#post))
+
+  - Update Config ([PUT /nodebalancers/{nodeBalancerId}/configs/{configId}](https://developers.linode.com/api/v4/nodebalancers-node-balancer-id-configs-config-id/#put))
 
 - URLS added to the Create Managed Service ([POST/managed/services](https://developers.linode.com/api/v4/managed-services/#post)) and Update Managed Service ([PUT /managed/services/{serviceId}](https://developers.linode.com/api/v4/managed-services-service-id/#put)) may now include additional special characters.