Update fates_tech_note.rst

fix se equation

docs/source/fates_tech_note.rst

@@ -3772,8 +3772,10 @@ the three shared parameters:
 where :math:`\Psi` [MPa] is the water potential of the media (xylem in this
 case); :math:`FMC [K/K_{max}]` is the fraction of xylem conductivity; :math:`\alpha` [/MPa] is a scaling parameter for air
 entering point, :math:`Se` is the dimensionless
-standardized relative water content as :
-.. math:: \Se =\frac{theta-theta_{r}}{theta_{sat}-theta_{r}} 
+standardized relative water content as:
+
+.. math:: Se =\frac{theta-theta_{r}}{theta_{sat}-theta_{r}} 
+
 where :math:`\theta`, :math:`\theta_{r}` and :math:`\theta_{sat}` [m3/m3] are volumetric water content, residual volumetric water content, and saturated
 volumetric water content correspondingly; and :math:`m` and :math:`n` are
 dimensionless (xylem conduits) size distribution parameters.