adds the units for the enegy and coordinates

README.md

@@ -118,12 +118,12 @@ An example of a data instance is as follows:
 | Field             | Description                                                   |
 | ----------------- | ------------------------------------------------------------- |
 | id                | Unique identifier for the data instance                       |
-| positions         | 3D Cartesian coordinates of the atoms                         |
+| positions         | 3D Cartesian coordinates of the atoms in Angstroem            |
 | atomicNumbers     | Atomic numbers                                                |
 | elements          | Chemical symbols                                              |
 | charge            | Total charge of the system                                    |
 | multiplicity      | Spin multiplicity of the system                               |
-| totalEnergy       | Total energy of the system                                    |
+| totalEnergy       | Total energy of the system in Hartree                         |
 | gradient          | Gradient of the total energy with respect to atomic positions |
 | dipoleMoment      | Dipole moment                                                 |
 | atomizationEnergy | Atomization energy of the system                              |