Add editorial note to error correction section

[jnurthen]

trafficstars

Describe the change

Needs to discuss that we are working on how to expose accessible names which are added to elements which prohibit their use. Point to the issues and discussion so readers know that this is subject to change.

Link to the version of the specification or documentation you were looking at at.

Link to documentation:

Does the issue exists in the editors draft (the editors draft is the most recent draft of the specification)? Yes