fixed extra spacing when copy-pasting LJ/cut command

Author: simongravelle

lammps-tutorials.tex

@@ -74,7 +74,7 @@
   backgroundcolor=\color{listing}, % Set background color to listing
   xleftmargin=5pt, % Extra left margin for spacing
   xrightmargin=5pt, % Extra right margin for spacing
-  columns=flexible, % or fixed or fullflexible
+  columns=fullflexible, %flexible or fixed or fullflexible
 }
 
 \newtcolorbox{note}{
@@ -534,7 +534,7 @@ \subsubsection{My first input}
 that details the different options for that command.  From the \lammpsgui{}
 editor buffer, you can access the documentation by
 right-clicking on a line containing a command (e.g.,~\lmpcmd{units lj}) and
-selecting \guicmd{View Documentation for 'units'}.  This action will
+selecting \guicmd{View Documentation for `units'}.  This action will
 prompt your web browser to open the corresponding URL for the online manual.
 A screenshot of this context menu is shown in Fig.~\ref{fig:GUI-1}.