[docs] Extra spaces breaking rst->html rendering

Two extra spaces in this release note are causing: (1) the bug link
to be displayed as text instead of converted to a hyperlink, and (2)
the list item to be displayed as a description list entry instead of
a regular bulleted list entry.

Change-Id: I516211d9328c4bacd627f152aa5fb62e3ab56734

releasenotes/notes/bug-2082587-fix-type-passed-during-backup-restoration.yaml

@@ -1,5 +1,5 @@
 ---
 fixes:
   - |
-    `Bug #2082587 <https://bugs.launchpad.net/cinder/+bug/2082587>` _: Fixed
+    `Bug #2082587 <https://bugs.launchpad.net/cinder/+bug/2082587>`_: Fixed
-     backup restoration throwing TypeError on new volume.
+    backup restoration throwing TypeError on new volume.