Add SimpleModManager Guide

Author: MarigoldZephyrNio

Diff for: docs/homebrew/img/simplemodmanager1.jpg

@@ -19,6 +19,7 @@ Homebrew apps are stored in `sd:/switch` by default and Homebrew sysmodules are
 #### Additional Homebrew apps/sysmodules:
 
 - [EdiZon](edizon.md) (sysmodule and Homebrew app)
+- [SimpleModManager](simplemodmanager.md) (Homebrew app)
 - [Tesla-Menu](tesla-menu.md) (sysmodule)
 - [MissionControl](mission-control.md) (sysmodule)
 - [sys-con](sys-con.md)(sysmodule)

Diff for: docs/homebrew/img/simplemodmanager2.jpg

@@ -0,0 +1,30 @@
+### Information
+
+SimpleModManager is a [homebrew app](index.md#terminologies) that allows easily adding and removing mods to the layeredFS directory from another directory on the SD card.
+
+#### Common use cases for SimpleModManager:
+
+- Switching between large modpacks
+- Enabling and disabling individual mods
+
+!!! warning "What **not** to use SimpleModManager for."
+    SimpleModManager should not be used for some specific games like Super Smash Bros. Ultimate and The Legend of Zelda: Breath of the Wild and Tears of the Kingdom. This is due to how these games handle mods differently from others.
+ -----
+
+#### Installation requirements:
+- The latest release of [SimpleModManager](https://github.com/nadrino/SimpleModManager/releases/latest) (the `SimpleModManager.nro` file)
+
+#### Installation instructions:
+1. Boot into Hekate and go to `Tools` > `USB Tools` > `SD Card`, then plug your Switch into your PC via USB.
+2. Your microSD card should now be accessible on your PC, open it.
+3. Copy the `SimpleModManager.nro` file the `/switch/` folder on your microSD card.
+4. Boot into CFW.
+
+#### Usage instructions:
+1. Create a directory named `mods/<game name>/<mod name>/` on the root of the SD card.
+    - What you put for the mod name does not have to align with anything, put whatever you like!
+2. Create the layeredFS directory for your mod that can be found on the [Game Modding](../extras/game_modding.md) page, skipping the `atmosphere` folder inside the `<mod name>` folder.
+3. Launch SimpleModManager via the Homebrew Menu and your games will show up, pressing A on them will show the mods available.
+
+![ExampleSwitchTheme](img/simplemodmanager1.jpg){ width="600" }
+![ExampleSwitchTheme](img/simplemodmanager2.jpg){ width="600" }

Diff for: docs/homebrew/index.md

@@ -62,6 +62,7 @@ nav:
       - 'NXTheme Installer': 'homebrew/nxtheme-installer.md'
       - 'NX-Shell': 'homebrew/nx-shell.md'
       - 'EdiZon': 'homebrew/edizon.md'
+      - 'SimpleModManager': 'homebrew/simplemodmanager.md/'
       - 'Tesla-Menu': 'homebrew/tesla-menu.md'
       - 'MissionControl': 'homebrew/mission-control.md'
       - 'sys-con': 'homebrew/sys-con.md'