doc: fix typo in Buffer API

PR-URL: #25544
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

doc/api/buffer.md

@@ -221,7 +221,7 @@ elements, and not as a byte array of the target type. That is,
    `[0x1020304]` or `[0x4030201]`.
 
 It is possible to create a new `Buffer` that shares the same allocated memory as
-a [`TypedArray`] instance by using the `TypeArray` object's `.buffer` property.
+a [`TypedArray`] instance by using the `TypedArray` object's `.buffer` property.
 
 ```js
 const arr = new Uint16Array(2);