address @adbenitez and @r10s comments

python/CHANGELOG

@@ -5,8 +5,10 @@
 
 - introduced PerAccount and Global hooks that plugins can implement 
 
-- introduced `member_added()` plugin event. 
+- introduced `member_added()` and `member_removed` plugin events. 
 
+- introduced two documented examples for an echo and a group-membership
+  tracking plugin. 
 
 0.800.0
 -------

python/src/deltachat/account.py

@@ -46,7 +46,7 @@ class Account(object):
         )
 
         hook = hookspec.Global._get_plugin_manager().hook
-        hook.account_init(account=self, db_path=db_path)
+        hook.account_init(account=self)
 
         self._threads = iothreads.IOThreads(self)
         self._hook_event_queue = queue.Queue()