Create postBuild script for Binder setup

Author: frreiss

binder/postBuild

@@ -0,0 +1,8 @@
+# Post-build script for binder/repo2docker environment setup.
+
+# Install additional packages beyond those in requirements.txt so that the
+# JupyterLab instance will be able to run all of the NLP library integrations.
+pip install -r config/dev_reqs.txt
+pip install -r config/jupyter_reqs.txt
+
+