Update README.md

README.md

@@ -44,10 +44,9 @@ pip install biom-format
 IPython notebooks demonstrating some of the modules in gneiss can be found as follows
 
 * [What are balances](https://github.com/biocore/gneiss/blob/master/ipynb/balance_trees.ipynb)
-* [Linear regression on balances in the 88 soils](https://github.com/biocore/gneiss/blob/master/ipynb/88soils.ipynb)
-* [Linear mixed effects models on balances in a CF study](https://github.com/biocore/gneiss/blob/master/ipynb/cfstudy.ipynb)
-* [Linear mixed effects models on balances in a PTSD study](https://github.com/biocore/gneiss/blob/master/ipynb/ptsd_mice.ipynb)
-
+* [Linear regression on balances in the 88 soils](https://github.com/biocore/gneiss/blob/master/ipynb/88soils/88soils.ipynb)
+* [Linear mixed effects models on balances in a CF study](https://github.com/biocore/gneiss/blob/master/ipynb/cfstudy/cfstudy.ipynb)
+\
 If you use this software package in your own publications, please cite it at
 ```
 Morton JT, Sanders J, Quinn RA, McDonald D, Gonzalez A, Vázquez-Baeza Y,