Update README.md

README.md

@@ -8,7 +8,7 @@ This is the code repository for OctSurf: Efficient Hierarchical Voxel-based Mole
 
 ### Download PDBbind   
 Download PDBbind general, refined, and core(CASF) from http://www.pdbbind.org.cn.   
-And fix some minor problems(replace several mol2 files by transforming sdf in general set, and remove the CONECT with index 0 pdb file). 
+Also fix some minor problems in data(replace several mol2 files by transforming sdf, and remove the CONECT with index 0 in pdb file). 
 ```angular2
 cd pdbbind
 bash data_download.sh