update docs

docs/commands.rst

@@ -6,6 +6,14 @@ Commands
 Kuyruk has only one command which consists of several sub-commands.
 ``kuyruk`` command usually takes a single ``--config`` argument
 which is the ``.py`` file containing configuration options.
+
+If no ``--config`` option is given it will be looked from environmental
+variable ``KUYRUK_CONFIG``. Set it with::
+
+    $ export KUYRUK_CONFIG=/home/cenk/app1/config/kuyruk.py
+
+... or add it to your ``.bashrc`` file.
+
 Each option in config can be overriden from command line. Example::
 
     $ kuyruk --config config.py --max-run-time 60 SUBCOMMAND
@@ -19,9 +27,9 @@ Worker
 ``worker`` sub-command starts a worker that consumes messages from a queue and
 run tasks. Example::
 
-    $ kuyruk --config config.py worker --queue heavy_jobs
+    $ kuyruk --config config.py worker --queue mp4_conversion
 
-If called with no parameters it will use the default configuration options and
+If called with no parameters it will use default configuration options and
 queue. Example::
 
     $ kuyruk worker
@@ -43,8 +51,8 @@ connection so there is nothing shared between workers. Usage::
 
     $ kuyruk --config config.py master
 
-Also workers poll the master see if it is alive and if master dies, each
-worker initiates a graceful shutdown.
+Also workers poll the master see if it is alive.
+If the master dies, workers are shut down gracefully.
 
 
 Requeue