readme: rephrase the changelog entry regarding the new exchange
Lets try to have it readable by human being.
--- a/README Wed Apr 23 15:08:28 2014 -0700
+++ b/README Wed Apr 23 15:32:52 2014 -0700
@@ -44,12 +44,16 @@
3.4.0 --
-- added progress support to obsolescence markers pushing
-- added multiple output during obsolescence marrkers exchange
-- record parent of pruned parent at prune time
-- only push markers relevant to pushed subset
-- only pull markers relevant to pulled subset (if server support)
-- added progress support for push and pull of markers over wire protocol
+
+- improvement to obsolescence marker exchange:
+ - record parent of pruned parent at prune time
+ - added progress when pushing obsmarkers
+ - added multiple output during obsolescence markers exchange
+ - only push markers relevant to pushed subset
+ - add a new experimental way to exchange marker (when server support):
+ - added progress when pulling obsmarkers
+ - only pull markers relevant to pulled subset
+ - avoid exchanging common markers in some case
3.3.1 -- 2014-04-23