Docmentation.md: Mention soft-wrapping when using Intellij

docs/Documentation.md

@@ -11,6 +11,7 @@ title: Documentation guide
 * Note these points when adapting the documentation to a different project/product:
   * The 'Site-wide settings' section of the page linked above has information on how to update site-wide elements such as the top navigation bar.
   * :bulb: In addition to updating content files, you might have to update the config files `docs\_config.yml` and `docs\_sass\minima\_base.scss` (which contains a reference to `AB-3` that comes into play when converting documentation pages to PDF format).
+* If you are using Intellij for editing documentation files, you can consider enabling 'soft wrapping' for `*.md` files, as explained in [_[se-edu/guides] **Intellij IDEA: Useful settings**_](https://se-education.org/guides/tutorials/intellijUsefulSettings.html#enabling-soft-wrapping)
 
 
 **Style guidance:**