doc: reword possessive form of Node.js in modules.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: nodejs#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/modules.md

@@ -82,7 +82,7 @@ by checking `require.main.filename`.
 
 <!-- type=misc -->
 
-The semantics of Node.js's `require()` function were designed to be general
+The semantics of the Node.js `require()` function were designed to be general
 enough to support reasonable directory structures. Package manager programs
 such as `dpkg`, `rpm`, and `npm` will hopefully find it possible to build
 native packages from Node.js modules without modification.
@@ -290,7 +290,7 @@ irrespective of whether or not `./foo` and `./FOO` are the same file.
 Node.js has several modules compiled into the binary. These modules are
 described in greater detail elsewhere in this documentation.
 
-The core modules are defined within Node.js's source and are located in the
+The core modules are defined within the Node.js source and are located in the
 `lib/` folder.
 
 Core modules are always preferentially loaded if their identifier is
@@ -409,7 +409,7 @@ If this was in a folder at `./some-library`, then
 `require('./some-library')` would attempt to load
 `./some-library/lib/some-library.js`.
 
-This is the extent of Node.js's awareness of `package.json` files.
+This is the extent of the awareness of `package.json` files within Node.js.
 
 If there is no `package.json` file present in the directory, or if the
 `'main'` entry is missing or cannot be resolved, then Node.js
@@ -485,7 +485,7 @@ Additionally, Node.js will search in the following list of GLOBAL_FOLDERS:
 * 2: `$HOME/.node_libraries`
 * 3: `$PREFIX/lib/node`
 
-Where `$HOME` is the user's home directory, and `$PREFIX` is Node.js's
+Where `$HOME` is the user's home directory, and `$PREFIX` is the Node.js
 configured `node_prefix`.
 
 These are mostly for historic reasons.