bump version

Author: DanielGoldfarb

src/mplfinance/_version.py

@@ -1,7 +1,7 @@
 
-version_info = (0, 12, 8, 'beta', 1)
+version_info = (0, 12, 8, 'beta', 2)
 
 _specifier_ = {'alpha': 'a','beta': 'b','candidate': 'rc','final': ''}
 
 __version__ = '%s.%s.%s%s'%(version_info[0], version_info[1], version_info[2],
-  '' if version_info[3]=='final' else _specifier_[version_info[3]]+str(version_info[4]))
+  '' if version_info[3]=='final' else _specifier_[version_info[3]]+str(version_info[4]))