doc: fix sorting in buffer.md

This PR places
`Buffer.from(object...)` section before
`Buffer.from(string...)` section
and upper-cased bottom references before backtick-started ones.

PR-URL: #25477
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>

doc/api/buffer.md

@@ -862,31 +862,6 @@ console.log(buf2.toString());
 
 A `TypeError` will be thrown if `buffer` is not a `Buffer`.
 
-### Class Method: Buffer.from(string[, encoding])
-<!-- YAML
-added: v5.10.0
--->
-
-* `string` {string} A string to encode.
-* `encoding` {string} The encoding of `string`. **Default:** `'utf8'`.
-
-Creates a new `Buffer` containing `string`. The `encoding` parameter identifies
-the character encoding of `string`.
-
-```js
-const buf1 = Buffer.from('this is a tést');
-const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
-
-console.log(buf1.toString());
-// Prints: this is a tést
-console.log(buf2.toString());
-// Prints: this is a tést
-console.log(buf1.toString('ascii'));
-// Prints: this is a tC)st
-```
-
-A `TypeError` will be thrown if `string` is not a string.
-
 ### Class Method: Buffer.from(object[, offsetOrEncoding[, length]])
 <!-- YAML
 added: v8.2.0
@@ -921,6 +896,31 @@ const buf = Buffer.from(new Foo(), 'utf8');
 // Prints: <Buffer 74 68 69 73 20 69 73 20 61 20 74 65 73 74>
 ```
 
+### Class Method: Buffer.from(string[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `string` {string} A string to encode.
+* `encoding` {string} The encoding of `string`. **Default:** `'utf8'`.
+
+Creates a new `Buffer` containing `string`. The `encoding` parameter identifies
+the character encoding of `string`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+
+console.log(buf1.toString());
+// Prints: this is a tést
+console.log(buf2.toString());
+// Prints: this is a tést
+console.log(buf1.toString('ascii'));
+// Prints: this is a tC)st
+```
+
+A `TypeError` will be thrown if `string` is not a string.
+
 ### Class Method: Buffer.isBuffer(obj)
 <!-- YAML
 added: v0.1.101
@@ -2639,6 +2639,9 @@ in UTF-16 code units.
 
 This value may depend on the JS engine that is being used.
 
+[RFC1345]: https://tools.ietf.org/html/rfc1345
+[RFC4648, Section 5]: https://tools.ietf.org/html/rfc4648#section-5
+[WHATWG Encoding Standard]: https://encoding.spec.whatwg.org/
 [`ArrayBuffer#slice()`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice
 [`ArrayBuffer`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
 [`Buffer.alloc()`]: #buffer_class_method_buffer_alloc_size_fill_encoding
@@ -2675,7 +2678,4 @@ This value may depend on the JS engine that is being used.
 [`buffer.constants.MAX_STRING_LENGTH`]: #buffer_buffer_constants_max_string_length
 [`buffer.kMaxLength`]: #buffer_buffer_kmaxlength
 [`util.inspect()`]: util.html#util_util_inspect_object_options
-[RFC1345]: https://tools.ietf.org/html/rfc1345
-[RFC4648, Section 5]: https://tools.ietf.org/html/rfc4648#section-5
-[WHATWG Encoding Standard]: https://encoding.spec.whatwg.org/
 [iterator]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols