tweak README

README.md

@@ -7,7 +7,7 @@ configs:
       - split: full
         path: "*.parquet"
 size_categories:
-  - 100K<n<1M
+  - 100M<n<1B
 tags:
   - physics
   - math
@@ -17,7 +17,8 @@ tags:
 
 This dataset contains all four-dimensional reflexive lattice polytopes. The data was
 compiled by Maximilian Kreuzer and Harald Skarke in
-[arXiv:hep-th/0002240](https://arxiv.org/abs/hep-th/0002240).
+[arXiv:hep-th/0002240](https://arxiv.org/abs/hep-th/0002240). More information is
+available at the [Calabi-Yau data website](http://hep.itp.tuwien.ac.at/~kreuzer/CY/).
 
 Please cite the paper when referencing this dataset:
 
@@ -43,7 +44,7 @@ This dataset is licensed under the
 
 ### Data Fields
 
-- `vertices`: Vertex positions of the polytope in normalized form.
+- `vertices`: Vertex positions of the polytope in normal form.
 - `vertex_count`: Vertex count of the polytope.
 - `facet_count`: Facet count of the polytope.
 - `point_count`: Lattice point count of the polytope.