get rid of driver shell script, to simplify deployment

update README and crontab to match

README

@@ -19,20 +19,29 @@ Dependencies
 ============
 
 - python3
-- python3-sqlalchemy
 - python3-psycopg2
 - python3-requests
+- python3-sqlalchemy
 
 
-Configuration file
-==================
+Deployment
+==========
+
+1. git clone under $GHLISTER_ROOT (of your choosing)
+2. mkdir ~/.config/swh/ ~/.cache/swh/lister-github/
+3. edit $GHLISTER_ROOT/etc/crontab and customize GHLISTER_ROOT
+4. crontab $GHLISTER_ROOT/etc/crontab
+5. create configuration file ~/.config/swh/lister-github.ini
+
+Sample configuration file
+-------------------------
 
 cat ~/.config/swh/lister-github.ini
 
         [main]
-        # see http://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls
         db_url = postgres:///github
-        cache_dir = cache
-        log_dir = log
-        username = foobar
-        password = quux
+          # see http://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls
+        cache_dir = /home/zack/.cache/swh/lister-github
+        log_dir =   /home/zack/.cache/swh/lister-github
+        username = foobar  # github username
+        password = quux    # github password