chore(version): set version to 2.0

Just to match the name a bit better.

[skip ci]

Author: Byron

smmap/__init__.py

@@ -3,7 +3,7 @@
 __author__ = "Sebastian Thiel"
 __contact__ = "[email protected]"
 __homepage__ = "https://github.com/Byron/smmap"
-version_info = (0, 9, 0)
+version_info = (2, 0, 0)
 __version__ = '.'.join(str(i) for i in version_info)
 
 # make everything available in root package for convenience