Correct documentation URL in pywws-version output

Signed-off-by: Jim Easterbrook <jim@jim-easterbrook.me.uk>

src/pywws/__init__.py

@@ -1,3 +1,3 @@
-__version__ = '18.6.3'
-_release = '1559'
-_commit = 'b47a2cf'
+__version__ = '18.6.4'
+_release = '1560'
+_commit = '433cb89'

src/pywws/version.py

@@ -41,6 +41,7 @@
 
 from pywws import __version__, _release, _commit
 
+
 def main(argv=None):
     if argv is None:
         argv = sys.argv
@@ -80,8 +81,9 @@ def main(argv=None):
             print('examples:')
             print('  ', example_dir)
         print('docs:')
-        print('   http://jim-easterbrook.github.com/pywws/')
+        print('   http://pywws.readthedocs.io/')
     return 0
 
+
 if __name__ == '__main__':
     sys.exit(main())