vimtex/test/examples/quick-start/main.tex

\documentclass{minimal}
\begin{document}

% \ll  Start/Stop compiling the document
% \lk  Stop the running compilation
% \lv  Open pdf viewer and/or do forward searching with
% \le  Parse the log file for errors and warnings
% \lc  Clean auxiliary files (\lC to also clean pdf files)

Hello world!

\end{document}