added logging resource (sentry)
Added a virtualenv section with resources
fixing #python-environments reference
added porting to python3 section
added python decorator library resource
Fixing virtualenv link, missing)
adding space, Python3 -> Python 3 in Porting to Python 3
renaming env section
merged env section
Fixed a missing link, fixed a dead link.
Merge pull request #30 from mekarpeles/feature/add-sources

Feature/add sources
Update authors.md
Public domain licensing
Added python newsletters

pycoder's and python weekly
Merge pull request #34 from vhf/patch-1

Fixed a missing link, fixed a dead link.
Merge pull request #35 from vhf/patch-2

Add a license
Edited the title.
Added myself to the authors list
Fixed merge conflicts
Update pycrumbs.md

duplicated entry for Environments and Environment Management, combined