Ignore automatically generated _version.py (#324)

Author: schroedtert

.gitignore

@@ -315,5 +315,5 @@ cython_debug/
 *.code-workspace
 
 docs/build
-
+pedpy/_version.py
 # End of https://www.toptal.com/developers/gitignore/api/python,visualstudiocode,pycharm,jupyternotebooks