[libc++][NFC] Add missing whitespace in release notes
NOKEYCHECK=True
GitOrigin-RevId: 7ab4fe1122bfab4e1e3caf804299fcb308ce5c5d
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index eb85502..20ec277 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -49,6 +49,7 @@
they were not supposed to set ``_LIBCPP_ABI_UNSTABLE`` manually, however we
still feel that it is worth mentioning in the release notes in case some users
had been doing it.
+
- The header ``<experimental/filesystem>`` has been removed. Instead, use
``<filesystem>`` header. The associated macro
``_LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM`` has also been removed.