docs(README): add integration details for VSCode and RunXMLDiff.bat script

Author: chemodun

README.md

@@ -275,6 +275,7 @@ Please be aware - each release archive has an appropriate link to the [VirusTota
 - Improved
   - XMLDiff: The first attribute of elements in XPath will be always added to make a diff more clear.
   - XMLDiff: If one attribute is not enough to define the element, the next one will be added to the XPath, iteratively.
+  - XMLDiff: Added the short description of integration with VSCode via RunXMLDiff.bat script and appropriate extension to make a diffs "on the fly" during editing XML files (modified ones).
 
 ### [0.2.21] - 2025-03-03