update readme and setup.py for release

Author: Martin O'Hanlon

README.rst

@@ -16,11 +16,19 @@ A beginner-friendly library for using common electronics components with the Ras
         else:
             led.off() 
 
-Full documentation is available at `picozero.readthedocs.io <https://picozero.readthedocs.io>`_ :
+Status
+------
+
+Pre-alpha - not yet for general release. Documentation is not yet available. There will be many bugs and issues.
+
+Full documentation will be available at `picozero.readthedocs.io <https://picozero.readthedocs.io>`_ :
 
 - `Installation and getting started guide <https://picozero.readthedocs.io/en/latest/gettingstarted.html>`_
 - `Recipes and how-to's <https://picozero.readthedocs.io/en/latest/recipes.html>`_
 - `API <https://picozero.readthedocs.io/en/latest/api.html>`_
 
-picozero is inspired by `gpiozero <https://gpiozero.readthedocs.io/en/stable/>`_ (and reuses some of its underlying structure), but is by design lighter weight and aligned with the Raspberry Pi Pico. 
+Notes
+-----
+
+picozero is inspired by `gpiozero <https://gpiozero.readthedocs.io/en/stable/>`_ (and reuses some of its underlying structure), but is by design lighter weight and aligned with the Raspberry Pi Pico. Thank you to everyone who has contributed to the gpiozero project.
 

setup.py

@@ -2,12 +2,12 @@
 
 __project__ = 'picozero'
 __packages__ = ['picozero']
-__desc__ = 'A beginner-friendly library for using common electronics components with the Raspberry Pi Pico.'
+__desc__ = 'A beginner-friendly library for using common electronics components with the Raspberry Pi Pico. Not yet for general release.'
 __version__ = '0.0.1'
 __author__ = "Raspberry Pi Foundation"
 __author_email__ = 'learning@raspberrypi.org'
 __license__ = 'MIT'
-__url__ = 'https://github.com/raspberrypilearning/picozero'
+__url__ = 'https://github.com/RaspberryPiFoundation/picozero'
 __keywords__ = [
     'raspberry',
     'pi',