doc: wrap style guide at 80 characters

PR-URL: nodejs#21361
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: Trott

doc/STYLE_GUIDE.md

@@ -58,15 +58,19 @@
   * Use a capital letter after the "Note:" label.
   * Preferably, make the note a new paragraph for better visual distinction.
 * Function arguments or object properties should use the following format:
-  * <code>* \`name\` {type|type2} Optional description. \*\*Default:\*\* \`defaultValue\`.</code>
-  * E.g. <code>* `byteOffset` {integer} Index of first byte to expose. **Default:** `0`.</code>
+  * ``` * `name` {type|type2} Optional description. **Default:** `value`. ```
+  <!--lint disable maximum-line-length remark-lint-->
+  * For example: <code>* `byteOffset` {integer} Index of first byte to expose. **Default:** `0`.</code>
+  <!--lint enable maximum-line-length remark-lint-->
   * The `type` should refer to a Node.js type or a [JavaScript type][].
 * Function returns should use the following format:
   * <code>* Returns: {type|type2} Optional description.</code>
   * E.g. <code>* Returns: {AsyncHook} A reference to `asyncHook`.</code>
 * Use official styling for capitalization in products and projects.
   * OK: JavaScript, Google's V8
+  <!--lint disable prohibited-strings remark-lint-->
   * NOT OK: Javascript, Google's v8
+  <!-- lint enable prohibited-strings remark-lint-->
 
 See also API documentation structure overview in [doctools README][].