When I\'m using the toc: yes
command, the document contains \"Content\" as the headline of the table of contents. Due to the fact that I want to write this document
You can also make use of babel simply specifying in the YAML header the "lang" field. For example:
---
lang: de-DE
title: "Ausgefallener Titel"
toc: 1
---
I.e., you can use the "lang" field and specify your desired language-and-country code. For example, de-DE, en-US, etc. (Of course, the corresponding babel package for that language should be installed, or you'll get an error).
With this YAML header that includes LaTeX-Package babel, it works for me:
---
title: "TOC in German"
header-includes:
- \usepackage[ngerman]{babel}
output:
pdf_document:
toc: true
number_sections: yes
---
This in your YAML should also work:
header-includes:
\renewcommand{\contentsname}{Inhalt}