Added a few more warnings about known bugs to the docs.

I have added a few more warnings about known bugs to the documentation. The program itself remains unchanged. I have managed to cross-compile the program from Windows to 64-bit Linux using a very recent version of GCC, which I managed to install using Docker. So, you can download that executable file here, it should be significantly more optimized than the one from the previous release. For other files (Windows executable files...), see the release v1.4.2.

UPDATE: I have managed to similarly produce a 32-bit Linux executable on my laptop using Docker. It really makes such things much easier.