Document changes and release 2.5.7-2pureos1

debian/changelog

+geoclue-2.0 (2.5.7-2pureos1) byzantium; urgency=medium
+
+  * Add librem5-ci
+  * geoclue.conf: Add phosh
+  * d/gbp.conf: Switch to PureOS byzantium
+
+ -- Guido Günther <agx@sigxcpu.org>  Tue, 16 Mar 2021 12:34:33 +0100
+
 geoclue-2.0 (2.5.7-2) unstable; urgency=medium
 
   * d/p/fix-nowifi-query.patch: Fix getting a location if the computer has no