Adjust paths for RTD

Author: tennlee

old_docs/requirements.txt

@@ -11,8 +11,8 @@ mknotebooks
 mkdocs-jupyter
 black 
 xarray 
--e ../packages/utils
--e ../packages/data
--e ../packages/training
--e ../packages/pipeline
--e ../packages/tutorial
+-e ./packages/utils
+-e ./packages/data
+-e ./packages/training
+-e ./packages/pipeline
+-e ./packages/tutorial