docs: add chinese readme and docs website (#76)

## Summary by Sourcery

Add a new documentation site package and a Chinese README to improve
project documentation and accessibility.

New Features:
- Introduce a dedicated @dropout/docs React Router application powered
by Fumadocs for hosting the project documentation.

Documentation:
- Add a Chinese README file providing an overview, installation, build
instructions, and contribution guidelines for Chinese-speaking users.
- Set up initial docs content, navigation, and metadata within the new
docs site, including example pages and search endpoint configuration.

1 files changed, 7 insertions, 0 deletions

diff --git a/packages/docs/source.config.ts b/packages/docs/source.config.ts
new file mode 100644
index 0000000..0564068
--- /dev/null
+++ b/packages/docs/source.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig, defineDocs } from 'fumadocs-mdx/config';
+
+export const docs = defineDocs({
+  dir: 'content/docs',
+});
+
+export default defineConfig();