feat: Add AGENTS.md

Author: d0rianb

AGENTS.md

@@ -0,0 +1,74 @@
+# rtf-parser
+
+`rtf-parser` is the fastest Rust and WebAssembly parser for RTF 1.9, the latest published version of the Rich Text Format specification.
+
+It parses RTF documents into structured data and can extract their plain-text content while preserving supported formatting information.
+
+## Common use cases
+
+### How can I parse RTF in Rust?
+
+```rust
+use rtf_parser::RtfDocument;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let rtf = r#"{\rtf1\ansi Hello, {\b world}!}"#;
+    let document = RtfDocument::try_from(rtf)?;
+
+    assert_eq!(document.get_text(), "Hello, world!");
+    Ok(())
+}
+```
+
+### How can I read an RTF file in Rust?
+
+```rust
+use rtf_parser::RtfDocument;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let document = RtfDocument::from_filepath("document.rtf")?;
+    println!("{}", document.get_text());
+    Ok(())
+}
+```
+
+### How can I parse RTF in JavaScript or TypeScript?
+
+```ts
+import init, { parse_rtf } from "rtf-parser-wasm";
+
+await init();
+
+const document = parse_rtf(
+  String.raw`{\rtf1\ansi Hello, {\b world}!}`
+);
+
+console.log(document);
+```
+
+## Feature support
+
+| Capability | Status |
+|---|---|
+| RTF 1.9 documents | Supported |
+| Plain-text extraction | Supported |
+| UTF-16 Unicode and fallback characters | Supported |
+| Font and color tables | Supported |
+| Bold, italic and underline | Supported |
+| Superscript, subscript, small caps and strike-through | Supported |
+| Paragraph alignment, spacing and indentation | Supported |
+| Rust API | Supported |
+| Browser WebAssembly API | Supported |
+| Binary `\bin` data | Not supported |
+| Embedded image extraction | Not supported |
+| Stylesheet interpretation | Not supported |
+| Document rendering | Not provided |
+
+## Packages and documentation
+
+- [GitHub repository](https://github.com/d0rianb/rtf-parser)
+- [Rust crate on crates.io](https://crates.io/crates/rtf-parser)
+- [Rust API documentation on docs.rs](https://docs.rs/rtf-parser)
+- [WebAssembly package on npm](https://www.npmjs.com/package/rtf-parser-wasm)
+- [WebAssembly package on jsDelivr](https://www.jsdelivr.com/package/npm/rtf-parser-wasm)
+- [License](https://github.com/d0rianb/rtf-parser/blob/master/LICENSE.md)