force-field.md

@@ -52,6 +52,7 @@ and of course we have
    - [Lennard-Jones](#lj)
    - [Fumi-Tosi](#ft)
    - [Extended Fumi-Tosi](#xft)
+   - [Dipole Aspherical Ion Model](#daim)
    - [Steele wall](#steele)
 * [Intramolecular interactions](#intra)
 
@@ -194,8 +195,12 @@ where the same damping functions as for the Tosi-Fumi potential are used.
 
 The parameters of this potential are $`\eta_{ij}`$, $`B_{ij}`$, $`n`$, $`\eta'_{ij}`$, $`B'_{ij}`$, $`C_{ij}`$, $`D_{ij}`$, $`d_{dd}^{ij}`$, $`d_{dq}^{ij}`$ for each pair. Mixing rules are similar to the ones of the Fumi-Tosi potential (but $`n`$ has to be the same for all the pairs).
 
+<a name="daim">
+
 ## Dipole Aspherical Ion Model
 
+</a>
+
 This potential is an extension of the Fumi-Tosi potential to account for the impact of the deformation of the electronic clouds in condensed phases on the repulsion energy [[Madden1996][5]]
 
 ```math