I want to add a letter prefix to my section (and subsection) numbers, so that 101, 101.1, 101.1.1 become S101, S101.1, S101.1.1 but I'm not sure how to implement. Document headers reproduced below. I just use the #section# , ##subsection## and ###subsubsection### tags.
documentclass: article
output:
pdf_document:
number_sections: yes
toc: no
toc_depth: '1'
word_document:
toc: no
toc_depth: '1'
html_document:
df_print: paged
number_sections: yes
toc: no
toc_depth: '1'
pandoc_args:
- --number-sections
- --number-offset=300