documentation: README.md: add update notice (v0.22.2 -> v0.23.0)

pull/88/head
Axel Burri 2016-04-18 00:16:45 +02:00
parent a27f99af46
commit 2317580639
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@ -31,6 +31,11 @@ snapshots and backups, as well as from the command line (e.g. for
instantly creating additional snapshots).
###Upgrading from v0.22.2
Please read the [upgrade guide](doc/upgrade_to_v0.23.0.md) if you are updating from btrbk <= v0.22.2.
Installation
============