synapse/docs/README.md

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Markdown

# Synapse Documentation
**The documentation is currently hosted [here](https://matrix-org.github.io/synapse).**
Please update any links to point to the new website instead.
## About
This directory currently holds a series of markdown files documenting how to install, use
and develop Synapse, the reference Matrix homeserver. The documentation is readable directly
from this repository, but it is recommended to instead browse through the
[website](https://matrix-org.github.io/synapse) for easier discoverability.
## Adding to the documentation
Most of the documentation currently exists as top-level files, as when organising them into
a structured website, these files were kept in place so that existing links would not break.
The rest of the documentation is stored in folders, such as `setup`, `usage`, and `development`
etc. **All new documentation files should be placed in structured folders.** For example:
To create a new user-facing documentation page about a new Single Sign-On protocol named
"MyCoolProtocol", one should create a new file with a relevant name, such as "my_cool_protocol.md".
This file might fit into the documentation structure at:
- Usage
- Configuration
- User Authentication
- Single Sign-On
- **My Cool Protocol**
Given that, one would place the new file under
`usage/configuration/user_authentication/single_sign_on/my_cool_protocol.md`.
Note that the structure of the documentation (and thus the left sidebar on the website) is determined
by the list in [SUMMARY.md](SUMMARY.md). The final thing to do when adding a new page is to add a new
line linking to the new documentation file:
```markdown
- [My Cool Protocol](usage/configuration/user_authentication/single_sign_on/my_cool_protocol.md)
```
## Building the documentation
The documentation is built with [mdbook](https://rust-lang.github.io/mdBook/), and the outline of the
documentation is determined by the structure of [SUMMARY.md](SUMMARY.md).
First, [get mdbook](https://github.com/rust-lang/mdBook#installation). Then, **from the root of the repository**,
build the documentation with:
```sh
mdbook build
```
The rendered contents will be outputted to a new `book/` directory at the root of the repository. You can
browse the book by opening `book/index.html` in a web browser.
You can also have mdbook host the docs on a local webserver with hot-reload functionality via:
```sh
mdbook serve
```
The URL at which the docs can be viewed at will be logged.
## Configuration and theming
The look and behaviour of the website is configured by the [book.toml](../book.toml) file
at the root of the repository. See
[mdbook's documentation on configuration](https://rust-lang.github.io/mdBook/format/config.html)
for available options.
The site can be themed and additionally extended with extra UI and features. See
[website_files/README.md](website_files/README.md) for details.