docs: All docs should be in English
Explain that all documentation must be written in English.
@@ -16,6 +16,7 @@ Containers](https://github.com/kata-containers) project.
All documents must:
+- Be written in simple English.
- Be written in [GitHub Flavored Markdown](https://github.github.com/gfm) format.
- Have a `.md` file extension.
- Include a TOC (table of contents) at the top of the document with links to
