Add UUID Version & Variant to GenerateGUID description (#1045)

## Changes

* Added a sentence detailing the **Version (4)** and **Variant (1)** of
the UUID algorithm used.
* This was determined by generating a GUID (for example
`564c5179-c21c-48e1-b5bb-8bd09f00d3f6`) and entering it into a [public
UUID decoder](https://www.uuidtools.com/decode).
* I don't believe adding this sentence is of any compromise to security
since anyone could publicly do this.
* This added sentence of information is helpful to note, as this version
does not have certain features that other UUID versions have such as
encoded timestamps, MAC addresses, or being sortable by time
([UUIDv7](https://uuid7.com/), [ULID](https://github.com/ulid/spec)).
* More info at
[Wikipedia](https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_(random))
or https://www.uuidtools.com/uuid-versions-explained
* Fixed a typo: Extraneous "[" was removed

## Checks

By submitting your pull request for review, you agree to the following:

- [X] This contribution was created in whole or in part by me, and I
have the right to submit it under the terms of this repository's open
source licenses.
- [X] I understand and agree that this contribution and a record of it
are public, maintained indefinitely, and may be redistributed under the
terms of this repository's open source licenses.
- [X] To the best of my knowledge, all proposed changes are accurate.

---------

Co-authored-by: IgnisRBX <[email protected]>

Author: TheWandererLee

content/en-us/reference/engine/classes/HttpService.yaml

@@ -111,12 +111,25 @@ methods:
     summary: |
       Generates a UUID/GUID random string, optionally with curly braces.
     description: |
-      This method randomly creates a [universally unique identifier
-      [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier)
+      This method generates a **random universally unique identifier**
+      ([UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier))
       string. The sixteen octets of a UUID are represented as 32 hexadecimal
-      (base 16) digits, displayed in 5 groups separated by hyphens in the form
-      `8-4-4-4-12` for a total of 36 characters, for example
+      (base 16) digits, displayed in five groups separated by hyphens in
+      the form `8-4-4-4-12` for a total of 36 characters, for example
       `123e4567-e89b-12d3-a456-426655440000`.
+      
+      The UUID specification used is [Version 4
+      (random)](https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_(random)),
+      variant 1 (DCE 1.1, ISO/IEC 11578:1996). UUIDs of this version are the
+      most commonly used due to their simplicity, as they are entirely randomly
+      generated. Note that this version does not have certain features that
+      other UUID versions have, such as encoded timestamps, MAC addresses, or
+      time-based sorting like [UUIDv7](https://uuid7.com/) or
+      [ULID](https://github.com/ulid/spec).
+
+      There are over 5.3&times;10<sup>36</sup> unique v4 UUIDs, in which the
+      probability of finding a duplicate within 103 trillion UUIDs is one in a
+      billion.
 
       The `wrapInCurlyBraces` argument determines whether the returned string is
       wrapped in curly braces (`{}`). For instance: