Add README catalog

README_catalog.md

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+# [MALVEKE] ***GAME BOY*** Cartridge (GB/GBC)
+
+## Introduction
+MALVEKE app, its Interacts with GAME BOY and GAME BOY Color cartridges. You can Dump & Restore RAM and ROM.
+
+## Features
+
+- Read info from GAME BOY/GAME BOY Color Cartridges
+- Backing up and restoring your saves (RAM)
+- Backing up and restoring your games (ROM) (WIP)
+
+## Instructions for use.
+
+These instructions assume that you are starting at the Flipper Zero desktop. Otherwise, press the Back button until you are at the desktop.
+
+- Press the `OK` button on the Flipper to open the main menu.
+- Choose `Applications` from the menu.
+- Choose `GPIO` from the submenu.
+- Choose `[MALVEKE] GAME BOY Cartridge (GB/GBC)`
+- If the **MALVEKE** board and the cartridge are connected, The Flipper Zero will show the loading screen of the application.
+- Press the `OK` to enter to menu.
+- Press the `Back` to back to principal menu.