docs: Correct location of release note

Not sure how this ended up here but we both missed this. Correct the
location.

Signed-off-by: Stephen Finucane <stephen@that.guru>
Fixes: d380219e ("api: support filtering patches by hash")

diff --git a/notes/rest-filter-hash-e031bd3db42eb540.yaml b/releasenotes/notes/rest-filter-hash-e031bd3db42eb540.yaml
similarity index 100%
rename from notes/rest-filter-hash-e031bd3db42eb540.yaml
rename to releasenotes/notes/rest-filter-hash-e031bd3db42eb540.yaml