doc: reword section title in addons.md

Throughout the docs, we sometimes write the possessive of _Node.js_ as
_Node.js'_ and other times as _Node.js's_. The former conforms with some
generally accepted style guides (e.g., Associated Press Stylebook) while
the latter complies with others (e.g., Chicago Manual of Style).

Since there is no clear authoritative answer as to which form is
correct, and since (at least to me) both are visually jarring and
sometimes cause a pause to understand, I'd like to reword things to
eliminate the possessive form where possible.

This is one of those examples.

PR-URL: #31713
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

doc/api/addons.md

@@ -40,7 +40,7 @@ involving knowledge of several components and APIs:
   other libraries are located in the `deps/` directory in the Node.js source
   tree. Only the libuv, OpenSSL, V8 and zlib symbols are purposefully
   re-exported by Node.js and may be used to various extents by Addons. See
-  [Linking to Node.js' own dependencies][] for additional information.
+  [Linking to libraries included with Node.js][] for additional information.
 
 All of the following examples are available for [download][] and may
 be used as the starting-point for an Addon.
@@ -373,7 +373,7 @@ try {
 }
 ```
 
-### Linking to Node.js' own dependencies
+### Linking to libraries included with Node.js
 
 Node.js uses statically linked libraries such as V8, libuv and OpenSSL. All
 Addons are required to link to V8 and may link to any of the other dependencies
@@ -1361,7 +1361,7 @@ console.log(result);
 [`Worker`]: worker_threads.html#worker_threads_class_worker
 [Electron]: https://electronjs.org/
 [Embedder's Guide]: https://github.com/v8/v8/wiki/Embedder's%20Guide
-[Linking to Node.js' own dependencies]: #addons_linking_to_node_js_own_dependencies
+[Linking to libraries included with Node.js]: #addons_linking_to_libraries_included_with_node_js
 [Native Abstractions for Node.js]: https://github.com/nodejs/nan
 [bindings]: https://github.com/TooTallNate/node-bindings
 [download]: https://github.com/nodejs/node-addon-examples