Updating spelling

Co-authored-by: Cory Grinstead <universalmind.candy@gmail.com>

src/lazy/dataframe.rs

@@ -492,7 +492,7 @@ impl JsLazyFrame {
     #[napi(catch_unwind)]
     pub fn slice(&self, offset: i64, length: u32) -> JsLazyFrame {
         let ldf = self.ldf.clone();
-        ldf.slice(offset, lenght).into()
+        ldf.slice(offset, length).into()
     }
     #[napi(catch_unwind)]
     pub fn tail(&self, n: u32) -> JsLazyFrame {