mention configurable docroot IQSS#10151

doc/release-notes/6.1-release-notes.md

@@ -195,6 +195,7 @@ to generate updated versions.
   - To fix #9952, we surround the license info with `<` and `>`.
   - To fix #9953, we no longer wrap the response in a `{"status":"OK","data":{` JSON object. This has also been noted in the guides at https://dataverse-guide--9955.org.readthedocs.build/en/9955/api/native-api.html#retrieve-signposting-information
   - To fix #9957, we corrected the mime/content type, changing it from `json+ld` to `ld+json`. For backward compatibility, we are still supporting the old one, for now.
+- It's now possible to configure the docroot, which holds collection logos and more. See [dataverse.files.docroot](https://guides.dataverse.org/en/6.1/installation/config.html#dataverse-files-docroot) in the Installation Guide and PR #9819. 
 - We have started maintaining an API changelog of breaking changes: https://guides.dataverse.org/en/6.1/api/changelog.html
 See also #10060.
 
@@ -213,6 +214,7 @@ See also #10060.
 - dataverse.bagit.sourceorg.address
 - dataverse.bagit.sourceorg.address
 - dataverse.bagit.sourceorg.name
+- dataverse.files.docroot
 - dataverse.files.globus-cache-maxage
 - dataverse.files.guestbook-at-request
 - dataverse.files.{driverId}.upload-out-of-band