squash: address requests for changes

doc/api/buffer.md

@@ -149,8 +149,8 @@ changes:
     description: Removed the deprecated `raw` and `raws` encodings.
 -->
 
-A character encoding may be specified when converting between a string and a
-`Buffer`.
+When string data is stored in or extracted out of a `Buffer` instance, a
+character encoding may be specified.
 
 ```js
 const buf = Buffer.from('hello world', 'ascii');
@@ -159,6 +159,11 @@ console.log(buf.toString('hex'));
 // Prints: 68656c6c6f20776f726c64
 console.log(buf.toString('base64'));
 // Prints: aGVsbG8gd29ybGQ=
+
+console.log(Buffer.from('fhqwhgads', 'ascii'));
+// Prints: <Buffer 66 68 71 77 68 67 61 64 73>
+console.log(Buffer.from('fhqwhgads', 'ucs2'));
+// Prints: <Buffer 66 00 68 00 71 00 77 00 68 00 67 00 61 00 64 00 73 00>
 ```
 
 The character encodings currently supported by Node.js include: