docs: release: Add release notes

Adds release notes for various recent changes

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
diff --git a/docs/release-notes.d/zephyr-usb.md b/docs/release-notes.d/zephyr-usb.md
index 7154f58..139de7c 100644
--- a/docs/release-notes.d/zephyr-usb.md
+++ b/docs/release-notes.d/zephyr-usb.md
@@ -1,2 +1,7 @@
-- Zephyr: Add USB CDC serial recovery check that now causes a build failure if console is enabled and device is the same as the USB CDC device.
-- Zephyr: Add USB CDC serial recovery check that now causes a build failure if the main thread priority is below 0 (cooperative thread), this would prevent USB CDC from working as the driver would not have been able to fire callbacks.
+- Zephyr: Add USB CDC serial recovery check that now causes a build
+  failure if console is enabled and device is the same as the USB
+  CDC device.
+- Zephyr: Add USB CDC serial recovery check that now causes a build
+  failure if the main thread priority is below 0 (cooperative
+  thread), this would prevent USB CDC from working as the driver
+  would not have been able to fire callbacks.