Bref help to compile.
sudo apt install texlive-full
Then pdflatex CinelerraGG_Manual.tex && pdflatex CinelerraGG_Manual.tex
There is a good guide for LaTeX at OverLeaf: https://www.overleaf.com/learn/latex/Learn_LaTeX_in_30_minutes
Use bold font for \textbf{root} user name. Use \begin{lstlisting}[language=bash,numbers=none], \end{lstlisting} for code blocks. Use typescript for file names and path.