docs(regexp): add Regulex JavaScript RegExp visualizer (#908)

* docs(regexp): add Regulex JavaScript RegExp visualizer

Added Regulex, a JavaScript regular expression visualizer, to the RegExp section.  
Regulex provides an interactive way to understand regex patterns and their structure.

* docs(regexp): add Regulex JavaScript RegExp visualizer

Added Regulex, a JavaScript regular expression visualizer, to the RegExp section. Regulex provides an interactive way to understand regex patterns and their structure.

Author: ViktorSvertoka

README.md

@@ -590,6 +590,7 @@ There're also some great commercial libraries, like [amchart](https://www.amchar
 ## RegExp
 * [RegEx101](https://regex101.com/#javascript) - Online regex tester and debugger for JavaScript. Also supports Python, PHP and PCRE.
 * [RegExr](https://regexr.com/) - HTML/JS based tool for creating, testing, and learning about Regular Expressions.
+* [Regulex](https://jex.im/regulex/) - JavaScript Regular Expression Parser & Visualizer.
 
 ## Voice Command