Add nodejs as dependency.

ericmjl · web-flow · commit 29899e0f876e · 2018-07-10T22:13:29.000-05:00
Resolves #22.
diff --git a/environment.yml b/environment.yml
@@ -17,5 +17,6 @@ dependencies:
 - missingno
 - scikit-learn
 - cython
+- nodejs
 - pip:
   - pyjanitor
