Added rspress SSG (#928)

* Added rspress SSG

* Update rspress.md

Author: hugo-sna

src/site/generators/rspress.md

@@ -0,0 +1,21 @@
+---
+title: rspress
+repo: web-infra-dev/rspress
+homepage: https://rspress.dev/
+language:
+  - Rust
+license:
+  - MIT
+templates:
+  - MDX
+description: Simple, efficient and easy to extend.
+---
+
+Use react components to expand the generator.
+
+Highlights:
+
+- Allows you to use react components in Markdown
+- Fast compile time
+- Built-in full-text search
+- Simpler I18n solution