Update README.md

nvdiffrec/data/tets/README.md

@@ -1,6 +1,6 @@
 Place the tet grid files in this folder. 
 We provide a few example grids. See the main README.md for a download link.
 
-You can also generate your own grids using https://github.com/crawforddoran/quartet 
+You can also generate your own grids using [quartet](https://github.com/crawforddoran/quartet).
 Please see the `generate_tets.py` script for an example. 
-
+Remember to renormalize the generated tet grid to [-0.5, 0.5].