adding a bit of info on how to use the booklet.sh script

README.md

@@ -1 +1,10 @@
-A `PEN PLOTTING PARTY*` zine generated from the [pen plotters/zine](https://pzwiki.wdka.nl/mediadesign/Pen_plotters/zine) wiki page, made with [booklet-with-pagedjs.sh](https://pzwiki.wdka.nl/mediadesign/User:Manetta/Booklet-with-pagedjs.sh) using Paged.js.
+A `PEN PLOTTING PARTY*` zine generated from the [pen plotters/zine](https://pzwiki.wdka.nl/mediadesign/Pen_plotters/zine) wiki page, made with [booklet.sh](https://pzwiki.wdka.nl/mediadesign/User:Manetta/Booklet.sh) using Paged.js.
+
+The script `booklet.sh` generates two PDFs:
+
+* one PDF: using weasyprint, based on the HTML of the wiki page
+* one booklet PDF, for booklet printing: using pdfbook2, based on the PDF above
+
+To run the script, you can use the following command:
+
+`$ bash booklet.sh`