> For the complete documentation index, see [llms.txt](https://docs.leadconverter.su/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.leadconverter.su/google-tag-manager-gtm-or-kak-nastroit/predislovie.md).

# Предисловие