[docs] Adding Initial Documentation (#3139)

## Overview
Adding Markdown, simplified versions of the docs hosted on [External Site](https://evilperson1337.notion.site/Eden-Guides-2b057c2edaf680149310edee3024565d).

### Guides Added

- Adding Games into Steam with Steam ROM Manager and Eden
- Adding Eden as an emulator into Steam ROM Manager
- How to modify the Date/Time in Eden
- How to configure controller profiles
- How to set controller profiles per game
- Eden fails to launch but does not leave a log (Windows)
- How to configure motion/gyro controls on steam deck
- How to access logs
- How to import saves into Eden (windows)
- How to install Atmosphere mods
- How to install Updates/DLC
- Quick Start Guide (Steam Deck)
- Quick Start Guide (Windows)
- Allowing Eden to Run on MacOS (MacOS)
- Sync Game Saves with Syncthing (General)
- Sync Game Saves with Syncthing (Windows)
- Sync Game Saves with Syncthing (Linux)
- Using Amiibo with Eden (Windows)
- Using Cheats with Eden (Windows)
- Using Cheats with Eden (Android)

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3139
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: Evilperson1337 <Evilperson1337@proton.me>
Co-committed-by: Evilperson1337 <Evilperson1337@proton.me>

1 files changed, 28 insertions, 0 deletions

diff --git a/docs/user/ControllerProfileByGame.md b/docs/user/ControllerProfileByGame.md
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+# Setting Controller Profiles By Game
+
+Use this guide when you want to set up specific controller profiles for specific games.  This can be useful for certain games like *Captain Toad Treasure Tracker* where a blue dot appears in the middle of the screen when you have docked mode enabled, but not handheld mode.
+
+**Click [Here](https://evilperson1337.notion.site/Setting-Controller-Profiles-By-Game-2b057c2edaf681658a57f0c199cb6083) for a version of this guide with images & visual elements.**
+
+---
+
+### Pre-Requisites
+
+- Eden Emulator set up and fully configured
+- Controller Profile Created
+    - See [*Configuring Controller Profiles*](./ControllerProfiles.md) for instructions on how to do this if needed.
+
+---
+
+## Steps
+
+1. *Right-Click* the game you want to apply the profile to in the main window and select **Properties.**
+2. Navigate to the **Input Profiles** tab in the window that appears.  Drop down on *Player 1 profile* (or whatever player profile you want to apply it to) and select the profile you want.
+
+    <aside>
+
+    ***NOTE***: You may have to resize the window to see all tabs, or press the arrows by the tabs to see **Input Profiles**.
+
+    </aside>
+1. Click **OK** to apply the profile mapping.
+2. Launch the game and confirm that the profile is applied, regardless of what the global configuration is.
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