feat: embed Markdown codes (#1296)

* feat: directly output raw language 'typlite'

* docs: raw output

crates/typlite/README.md

@@ -10,3 +10,7 @@ typlite main.typ
 # specify output
 typlite main.typ output.md
 ```
+
+## Feature
+
+- **Raw Output**: Raw codes with `typlite` language will be directly output into the Markdown result.

crates/typlite/src/lib.rs

@@ -582,6 +582,18 @@ impl TypliteWorker {
     fn raw(node: &SyntaxNode) -> Result<Value> {
         let mut s = EcoString::new();
         let raw = node.cast::<ast::Raw>().unwrap();
+
+        // Raw codes with typlite language will not be treated as a code block but directly output into the Markdown result.
+        if let Some(lang) = raw.lang() {
+            if &EcoString::from("typlite") == lang.get() {
+                for line in raw.lines() {
+                    s.push_str(&Self::value(Self::str(line.to_untyped())?));
+                    s.push('\n');
+                }
+                return Ok(Value::Content(s));
+            }
+        }
+
         if raw.block() {
             s.push_str(&Self::value(Self::str(node)?));
             return Ok(Value::Content(s));