Update changelog

CHANGES.rst

@@ -6,6 +6,9 @@ Saraswati changelog
 in progress
 ===========
 
+- Add capability for storing audio without putting it into container. Thanks, @MKO1640.
+- Add audio formats "wav" and "WavPack". Thanks, @MKO1640.
+
 2021-07-21 0.6.0
 ================
 
@@ -22,7 +25,7 @@ in progress
 
 - Run recorder service task (checking for free disk space) each 10 seconds
 - Improve production setup documentation
-- Remove ``recording_`` prefix from recorded file name. Thanks, Weef.
+- Remove ``recording_`` prefix from recorded file name. Thanks, @msweef.
 - Improve spool subdirectory hierarchy to reduce the number of files per directory. Thanks, Michael.
   The new scheme is ``/var/spool/saraswati/{year}/{month:02d}/{day:02d}/{channel}/{timestamp}_{channel}_{fragment:04d}.mka``.
 - Use more ISO-like timestamp format, separating each datetime's fragments.