Update the website URL

The DNS for the official domain has been updated, so I'm letting jekyll
know.

Author: lucyb

_config.yml

@@ -18,8 +18,7 @@ email: pythonnw@gmail.com
 description: >- # this means to ignore newlines until "baseurl:"
   Python North West is a group based in Manchester. It's open to new and experienced Python users alike.
   We meet on the third Thursday of every month.
-baseurl: "/pythonnw.github.io" # the subpath of your site, e.g. /blog
-url: "" # the base hostname & protocol for your site, e.g. http://example.com
+url: https://pynw.org # the base hostname & protocol for your site, e.g. http://example.com
 twitter_username: pythonnw
 github_username:  pythonnorthwestengland
 
@@ -39,4 +38,4 @@ plugins:
 #   - vendor/bundle/
 #   - vendor/cache/
 #   - vendor/gems/
-#   - vendor/ruby/
+#   - vendor/ruby/