a bit of text for the readme

README.md

@@ -1,3 +1,24 @@
 
-   Perplex
-
+# Perplex
+
+A Movie Renamer for Plex Metadata
+
+## Overview
+
+This simple Python script for renaming movie files in a Plex database.
+[Plex](http://plex.tv/) is a software suite for organizing videos,
+music and photos.  It can identify movies based on their file names
+and retrieve corresponding metadata.  In practice, however, not all
+file names are appropriate and thus some movies usually need to be
+assigned to the corresponding movie titles manually.  Unfortunately,
+Plex is not able to rename these files and thus if the database is
+initialized from the scratch these files need to be manually fixed
+again.
+
+The Python script `perplex` solves this problem.  Given an
+installation of Plex and the corresponding database, it lists all
+imported movies and renames them according to the retrieved movie
+metadata.  To avoid breaking the current installation, the renamed
+files are copied to another directory.
+
+That's it.

perplex.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Perplex - Plex-base Movie Renamer
+# Perplex - A Movie Renamer for Plex Metadata
 # Copyright (c) 2015 Konrad Rieck ([email protected])
 
 import argparse