fix README

README.md

@@ -16,25 +16,26 @@ Setup
 
 This script can be use either directly (e.g. via context menu) or through cups-pdf.
 
-First copy file `cups-pdf-postprocess.sh` and edit it for your needs. When invoked by
+First copy file `cups-pdf-postprocess.conf` to /etc/cups/ and edit it for your needs.
+When invoked by
 cups, the script does not have any knowledge about running X, so you have to
-set atleast `DISPLAY` (and probaly also `XAUTHORITY`) variable. Also you can specify
-list of your custom printer in here-document at end of file.
+set atleast `DISPLAY` (and probaly also `XAUTHORITY`) variable.
 
-Syntax is `("name of printer", ["command", "first argument"]),` (it will be
+Syntax is of printers section `("name of printer", ["command", "first argument"]),`
+(it will be
 interpreted as part of Python list literal). There will be appended aditional
 `lp`-like parameters when acually executing command.
 
 To use it through cups, install pdf-cups, setup a new virtual printer and
 then modify `/etc/cups/cups-pdf.conf`:
 ```
-PostProcessing /path/to/cups-pdf-postprocess-your-wrapper.sh
+PostProcessing /path/to/cups-pdf-postprocess-your-wrapper.py
 ```
 
 *NOTE:* Ubuntu requires modifying AppArmor settings to allow cups-pdf to execute
 this script by adding something like
 ```
-  /path/to/cups-pdf-postprocess-your-wrapper.sh ux,
+  /path/to/cups-pdf-postprocess-your-wrapper.py ux,
 ```
 into cups-pdf profile.