- improved description

README.md

@@ -10,13 +10,24 @@ Alternatively, copy the 'bin/' and 'lib' paths to your local perl installation.
 
 ## Usage
 
-    ta-tool <cmd> [options]
+    ta-tool <command> [options]
 
     OPTIONS:
       -v --verbose    Show more detailed option
       -h --help       Prints this help information
 
+    COMMAND:
+      init            Initialize config
+      log             parses / searches Rosetta server log files very fast
+      search          searches Rosetta for typical patterns (IE, SIP...)
+      count           counts Rosetta matches of typical patterns (IE, SIP...)
+
 at the moment only the commands `log`, `search` and `count` supported, but will
 be extended in near future.
 
+## First use
+
+    ta-tool init -r $ROSETTA_HOST -l $ROSETTA_LOGDIR
+
+this stores the rosetta host and log dir in local .config/ta-tool.rc