Update conf.py for docs

Author: dhoomakethu

doc/conf.py

@@ -21,6 +21,7 @@
 import recommonmark
 from recommonmark.parser import CommonMarkParser
 from recommonmark.transform import AutoStructify
+from pymodbus import __version__
 parent_dir = os.path.abspath(os.pardir)
 # examples = os.path.join(parent_dir, "examples")
 example_contrib = os.path.join(parent_dir, "examples/contrib")
@@ -72,9 +73,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'1.4.0'
+version = __version__
 # The full version, including alpha/beta/rc tags.
-release = u'1.4.0'
+release = __version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.