Add release instructions

Author: Steven Silvester

RELEASE.md

@@ -0,0 +1,41 @@
+# Making a Release of Notebook
+
+## Perform a local dev install
+
+`pip install -e .`
+
+## Add release dependencies
+
+```bash
+conda install -c conda-forge nodejs babel twine
+npm install -g po2json
+```
+
+## Update the version
+
+```bash
+vim notebook/_version.py
+git commit -am "Release $(python setup.py --version)"
+git tag $(python setup.py --version)
+```
+
+## Create the artifacts
+
+```bash
+rm -rf dist
+python setup.py sdist
+python setup.py bdist_wheel
+```
+
+## Upload the artifacts
+twine check dist/* && twine upload dist/*
+
+## Change back to dev version
+
+```
+vim notebook/_version.py
+git commit -am "Back to dev version"
+```
+
+## Push the commits and tags
+git push <remote> <branch> --tags