doc: replace "below" with "following"

Ref: https://learn.microsoft.com/en-us/style-guide/a-z-word-list-term-collections/b/below
PR-URL: nodejs#52315
Refs: https://learn.microsoft.com/en-us/style-guide/a-z-word-list-term-collections/b/below
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Moshe Atlow <[email protected]>
Reviewed-By: Ulises Gascón <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>

doc/api/addons.md

@@ -845,8 +845,8 @@ class MyObject : public node::ObjectWrap {
 ```
 
 In `myobject.cc`, implement the various methods that are to be exposed.
-Below, the method `plusOne()` is exposed by adding it to the constructor's
-prototype:
+In the following code, the method `plusOne()` is exposed by adding it to the
+constructor's prototype:
 
 ```cpp
 // myobject.cc

doc/api/modules.md

@@ -42,7 +42,8 @@ In this example, the variable `PI` is private to `circle.js`.
 The `module.exports` property can be assigned a new value (such as a function
 or object).
 
-Below, `bar.js` makes use of the `square` module, which exports a Square class:
+In the following code, `bar.js` makes use of the `square` module, which exports
+a Square class:
 
 ```js
 const Square = require('./square.js');
@@ -123,7 +124,7 @@ 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.
 
-Below we give a suggested directory structure that could work:
+In the following, we give a suggested directory structure that could work:
 
 Let's say that we wanted to have the folder at
 `/usr/lib/node/<some-package>/<some-version>` hold the contents of a