docs: update link

setup.py

@@ -2,10 +2,10 @@ from setuptools import setup
 
 setup(name='bme280',
       version='1.0',
-      url='http://github.com/cmur2/python-bme280',
+      url='https://github.com/cmur2/python-bme280',
       author='Christian Nicolai',
       description='A python library for accessing the BME280 combined humidity and pressure sensor from Bosch.',
       packages=['bme280'],
       long_description=open('README.md').read(),
       requires=['python (>= 2.7)', 'smbus (>= 0.4.1)'],
-      install_requires=['smbus-cffi'])
+      install_requires=['smbus-cffi'])