Finalized Jupyterlab for the sprint

Dockerfile

@@ -18,3 +18,8 @@ ENV CONFIG_PATH=/home/jovyan/config.txt
 
 COPY app /dash/app/
 RUN chown -R jovyan /dash/app/
+
+# install some NLTK and spaCy data
+RUN python -m nltk.downloader stopwords
+RUN python -m nltk.downloader wordnet
+RUN python -m spacy download en_core_web_sm