Documentation

What is the name of the documentation and installation instructions file?

404.php
archive.php
author.php
category.php
comments.php
content-aside.php
content-image.php
content-link.php
content-none.php
content-page.php
content-quote.php
content-status.php
content.php
css
editor-style-rtl.css
editor-style.css
footer.php
functions.php
header.php
image.php
inc
index.php
js
languages
page-templates
page.php
rtl.css
screenshot.png
search.php
sidebar-front.php
sidebar.php
single.php
style.css
tag.php