I have a preamble
---
title: "Title"
author: "Me"
output:
pdf_document:
keep_tex: yes
header-includes:
- \usepackage[T2A]{fontenc}
- \usepackage[utf8]{inputenc}
- \usepackage[russian]{babel}
---
but it doesn't work with Cyrillic font. Please? can you say where is problem?