fix import and README

README.md

@@ -3,7 +3,7 @@
 ## Installation
 
 ```sh
-pip install pip install git+https://github.com/gmega/logtools.git
+pip install git+https://github.com/gmega/logtools.git
 ```
 
 ## Usage

logtools/cli/to_csv.py

@@ -1,10 +1,9 @@
 """Parses a log stream, possibly pre-filtered and/or merged, into a CSV file. Allows chronicles topics to be
 extracted into their own columns."""
 import sys
+from argparse import ArgumentParser
 from csv import DictWriter
 
-from traitlets.config.loader import ArgumentParser
-
 from logtools.log.sources.stream_log_source import StreamLogSource