small cleaning in tutorial 5

Author: simongravelle

lammps-tutorials.tex

@@ -2771,15 +2771,15 @@ \subsection{Tutorial 5: Reactive silicon dioxide}
 can be used to calculate the partial charges of a system undergoing deformation, as well as
 the formation and breaking of chemical bonds~\cite{van2001reaxff, zou2012investigation}.
 The system simulated in this tutorial is a block of silicon dioxide $\text{SiO}_2$ (Fig.~\ref{fig:SIO})
-which is deformed until it ruptures.  Particular attention is paid to the evolution
-of atomic charges during the deformation of the structure, with chemical reactions
-resulting from the deformation being tracked over time.
+which is deformed until it ruptures.  Particular attention is given to the evolution
+of atomic charges during deformation, with a focus on tracking chemical reactions
+resulting from the deformation over time.
 
 \subsubsection{Prepare and relax}
 
-The first action we need to perform here is to relax the structure with ReaxFF,
-which we are gonna do using molecular dynamics.  As always, to make sure that the system
-equilibrates nicely, we will us track certain parameters over time.  To set up this
+The first step is to relax the structure with ReaxFF, which which will be achieved using
+molecular dynamics.  To ensure the system equilibrates properly, we will monitor certain
+parameters over time, such as the system volume.  To set up this
 tutorial, select \guicmd{Start Tutorial 5} from the
 \guicmd{Tutorials} menu of \lammpsgui{} and follow the instructions.
 The editor should display the following content corresponding to \flecmd{relax.lmp}:
@@ -2957,7 +2957,7 @@ \subsubsection{Deform the structure}
 fix mynvt all nvt temp 300.0 300.0 100
 timestep 0.5
 \end{lstlisting}
-Here, a barostat is not used because the change in the box volume will be imposed
+Here, no barostat is used because the change in the box volume will be imposed
 by the \lmpcmd{fix deform}.
 
 \begin{figure}
@@ -3084,9 +3084,10 @@ \subsubsection{Decorate the surface}
   backcolor white amap -1 2 ca 0.0 3 min royalblue &
   0 green max orangered
 
-fix myspec all reaxff/species 5 1 5 decorate.species element Si O H
+fix myspec all reaxff/species 5 1 5 decorate.species &
+  element Si O H
 \end{lstlisting}
-Here, the $+1\text{e}-10$ was added to the denominator of the \lmpcmd{variable qH}
+Here, the $+1 \mathrm{e}{-10}$ was added to the denominator of the \lmpcmd{variable qH}
 to avoid dividing by 0 at the beginning of the simulation.  Finally, let us
 create a loop with 10 steps, and create two hydrogen atoms at random locations at
 every step: