Added GitHub templates, moved CONTRIBUTING.md to .github

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,15 @@
+## Description
+[Please provide a general introduction to the issue/proposal.]
+
+[If reporting a bug, attach the entire traceback from Python.]
+[If proposing an enhancement/new feature, provide links to related articles, reference examples, etc.]
+
+
+## Way to reproduce
+[If reporting a bug, please include the following important information:]
+- [ ] Code example
+- [ ] Relevant images (if any)
+- [ ] Operating system and version
+- [ ] Python version
+- [ ] scikit-image version (run `skimage.__version__`)
+

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+[Tell us about your new feature, improvement, or fix! If relevant, please supplement the PR with images.]
+
+
+## Checklist
+[It's fine to submit PRs which are a work in progress! But before they are merged, all PRs should provide:]
+- [ ] Clean style in [the spirit of PEP8](https://www.python.org/dev/peps/pep-0008/)
+- [ ] [Docstrings for all functions](https://github.com/numpy/numpy/blob/master/doc/example.py)
+- [ ] Gallery example in `./doc/examples` (new features only)
+- [ ] Unit tests
+
+[For detailed information on these and other aspects see [scikit-image contribution guidelines](http://scikit-image.org/docs/dev/contribute.html)]
+
+
+## References
+[If this is a bug-fix or enhancement, it closes issue # ]
+[If this is a new feature, it implements the following paper: ]
+

doc/source/contribute.txt

@@ -1,2 +1,2 @@
 .. include:: ../../TASKS.txt
-.. include:: ../../CONTRIBUTING.txt
+.. include:: ../../.github/CONTRIBUTING.txt