Merge pull request #1 from xoopscube/xcl-d3forum

Merge XCL 2.3

Author: gigamaster

README.md

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+[![UTD powered-by-electricity](http://ForTheBadge.com/images/badges/powered-by-electricity.svg)](https://github.com/gigamaster/xelfinder)
+[![UTD](https://forthebadge.com/images/badges/built-with-love.svg)](https://github.com/gigamaster/xelfinder)
+
+[![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/2.0.0/active.svg)](https://github.com/xoopscube/xcl)
+![License GPL](https://img.shields.io/badge/License-GPL-green)
+![X-Updare Store](https://img.shields.io/badge/X--Update%20Store-Pending-red)
+
+## ///// — D3Forum :: Discussion Forum Management
+
+![alt text](https://repository-images.githubusercontent.com/469831419/6032bf18-5c1e-4f27-aa2f-2b8e60f4e5)
+
+MODULE |  D3FORUM
+------------ | -------------
+Description  | Duplicatable discussion forum management
+Render Engine| Smarty v2 and XCube Layout
+Version      | 2.30
+Credits      | @domifara, @naao Naoki Okino, @nao-pon Naoki Sawada, @gigamaster (XCL7)
+Author       | Gijoe (peak.ne.jp) and Jidaikbo 
+Copyright    | 2005-2022 Authors
+License      | XCL module distributed under a GPL 2.0 License.
+
+
+##### :computer: The Minimum Requirements
+
+
+
+          Apache, Nginx, etc. PHP 7.2.x
+          MySQL 5.6, MariaDB  InnoDB utf8 / utf8mb4
+          XCL version 2.3.+
+
+
+
+-----