Add section on Licensing to README

README.md

@@ -1,4 +1,4 @@
-# fbs
+# fman build system
 Cross-platform desktop applications are a lot of work:
 
  * Packaging an app into a standalone executable is not trivial.
@@ -20,19 +20,24 @@ many more years and can be much faster than Electron. Qt is written in C++, but
 bindings are available for other languages. A popular choice for Python is
 [PyQt](https://riverbankcomputing.com/software/pyqt/intro).
 
-The goal of this project is to solve the above problems for applications written
-with PyQt. It open sources code that was originally written for the
-cross-platform file manager [fman](https://fman.io). By packaging field-tested
-solutions in one cohesive package, this project aims to let you create
-cross-platform desktop apps in minutes, not months.
+This project addresses the above problems for applications written with PyQt.
+It open sources code that was originally written for the cross-platform file
+manager [fman](https://fman.io). By packaging field-tested solutions in one
+cohesive package, this project lets you create cross-platform desktop apps in
+minutes, not months.
 
 ## Getting started
 The best place to get started is the
 [official tutorial](https://github.com/mherrmann/fbs-tutorial).
 
-## Current status
-Work on separating fman's source code from code useful for this project began in
-mid-December 2017. At the moment, it's possible to package your app into a
-standalone executable that you can distribute to your users. The project will be
-very active for the coming weeks. If you want to stay up-to-date on what's new,
-please subscribe to the (non-spammy) [mailing list](http://eepurl.com/ddgpnf).
+## Licensing
+This project is licensed under the GPL. In simple terms, this means you can use
+it for free in open source projects that are also licensed under the GPL. On the
+other hand, if you do not want to open source your code (such as when you are
+working on a proprietary app), then you need to obtain a commercial license. The
+price for this license is currently 99 Euros. To purchase a license, click
+[here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=JG23NJLUMPYS8).
+
+## Project updates
+To stay updated on the evolution of the project, please subscribe
+[here](http://eepurl.com/ddgpnf).