docs(potentials): Update module documentation for molecular mechanics potential energy functions

Author: TKanX

src/potentials/mod.rs

@@ -1,2 +1,13 @@
+//! Molecular mechanics potential energy functions.
+//!
+//! This module organizes the physical interaction kernels used in the DREIDING force field.
+//! These kernels are pure functions that compute potential energy and force derivatives
+//! based on geometric parameters (distances, angles) and force field constants.
+//!
+//! # Categories
+//!
+//! - [`bonded`]: Intramolecular interactions (covalent bonds, angles, dihedrals).
+//! - [`nonbonded`]: Intermolecular and non-bonded intramolecular interactions (VDW, Electrostatics).
+
 pub mod bonded;
 pub mod nonbonded;