expand a few more version placeholders

Author: akohlmey

lammps-tutorials.tex

@@ -4299,7 +4299,7 @@ \subsubsection{Installing Linux .flatpak variant}
 
 \subsubsection{Installing the macOS .dmg package}
 
-After downloading the LAMMPS-macOS-multiarch-GUI-XXXAug2024.dmg file,
+After downloading the LAMMPS-macOS-multiarch-GUI-29Aug2024_update1.dmg file,
 double-click on it and then drag the LAMMPS\_GUI app bundle
 into the Applications folder shown in the dialog that opens.  To
 enable command-line access, follow the instructions in the README.txt
@@ -4314,11 +4314,11 @@ \subsubsection{Installing the macOS .dmg package}
 
 \subsubsection{Installing the Windows .exe package}
 
-Download the LAMMPS-Win10-64bit-GUI-XXXAug2024.exe installer.
+Download the LAMMPS-Win10-64bit-GUI-29Aug2024_update.exe installer.
 Windows may warn you that the file is from an unknown developer
 and was downloaded from the internet.  This happens because neither the
 installer nor the LAMMPS--GUI application (or any other applications inside)
-has been cryptographically signed.  You will need to choose to keep the file,
+have been cryptographically signed.  You will need to choose to keep the file,
 and when launching the installer again, confirm that you want to run it despite the warning.
 
 After installation, a new entry should appear in the Start menu. Additionally,