I am trying to accommodate multiple authors and affiliations as follows.
---
title: "Title"
author: |
| Author1^1^, Author2^2^, Author3^1^ and Author4^2^
| 1. Affiliation1
| 2. Affiliation2
date: "Wednesday, April 10, 2015"
output:
pdf_document
---
With above I am getting

How to modify the default R markdown Yaml header to get customised output in the author field? I would like to.
- Avoid italics for affiliation.
- Have some space between author and affiliation (Empty line with | does not work).
- Reduced font size for affiliation alone.
