make recent change to fix ti/spring docs use mathjax

doc/src/fix_ti_spring.rst

@@ -135,10 +135,11 @@ system's potential energy as part of :doc:`thermodynamic output
 This fix computes a global scalar and a global vector quantities which
 can be accessed by various :doc:`output commands <Howto_output>`. The
 scalar is an energy which is the sum of the spring energy for each
-atom, where the per-atom energy is 0.5 \* k \* r\^2. The vector stores
+atom, where the per-atom energy is :math:`0.5 \cdot k \cdot r^2`.
-2 values.  The first value is the coupling parameter lambda.  The
+The vector stores 2 values.  The first value is the coupling parameter lambda.
-second value is the derivative of lambda with respect to the integer
+The second value is the derivative of lambda with respect to the integer
-timestep *s*, i.e. d lambda / ds.  In order to obtain d lambda / dt,
+timestep *s*, i.e. :math:`\frac{d \lambda}{d s}`.  In order to obtain
+:math:`\frac{d \lambda}{d t}`,
 where t is simulation time, this 2nd value needs to be divided by the
 timestep size (e.g. 0.5 fs).  The scalar and vector values calculated
 by this fix are "extensive".

doc/utils/sphinx-config/false_positives.txt

@@ -597,6 +597,7 @@ Dcut
 de
 dE
 De
+deallocated
 decorrelation
 debye
 Debye