Better README

README.md

@@ -9,7 +9,7 @@ and automatically purges snapshots that not correspond to:
 * the last 10 mondays,
 * the first day of the last 10 months.
 
-**Important:** in order to properly select which snapshot to purge,
+**Important:** in order to properly select purgeable snapshots,
 `ec2-backup` should be run daily.
 
 ## Installation
@@ -19,19 +19,17 @@ and automatically purges snapshots that not correspond to:
 
 ## Configuration
 
-  Edit the `config.json` to set up your AWS credentials.
+Put your AWS credentials in the `config.json` file.
 
 ## Usage
 
-    Usage: ec2-backup
+    $ ec2-backup
 
-    Options: no option for now.
-
-To automatically launch `ec2-backup` each night, you can add a cron job
-with `crontab -e`: 
+To automatically launch `ec2-backup` every night, just add a cron job
+like this: 
 
     0 4 * * * /path/to/ec2-backup.coffee >> /var/log/ec2-backup.log 2>&1
 
 ## License
 
-  MIT
+MIT