Add basic DLC installation instructions

I.-Quick-start-[Users].md

@@ -88,9 +88,9 @@ Before proceeding, ensure your drivers are up to date:
 6. A new window should pop up which says `Open shadps4? `, tap on the `Open Anyway` button and enter your password or use your fingerprint to confirm.
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-## 3. Install games and updates
+## 3. Install games and related content
 > [!CAUTION]
-> **Games and game updates are copyrighted content and must be dumped from your own copy of the game.**
+> **Games, updates, and DLC are copyrighted content and must be dumped from your own copy of the game.**
 
 The emulator is now started. Now you want to install your first game(s).
 1. Use a dumper tool (app/payload) on your jailbroken PS4 to dump your game files. Most game dumpers come with instructions for using them.
@@ -106,6 +106,16 @@ The process for installing updates is the same:
    - If you're using Itemzflow, your update folder will already have the correct name.
 2. Copy the game update to your game installation directory.
 3. Once finished, the game should show the installed update version in the UI.
+
+Installing DLC is slightly different:
+1. Prepare your dump of the DLC by making sure the folder has the correct name format
+   - Currently, this means the name should end in a 16-character long string called the "entitlement id".
+   - Itemzflow DLC dumps are formatted correctly by default.
+2. Navigate to your set additional content directory, this is something you set when first booting shadPS4.
+   - For SDL users, you'll need to manually add an additional content path to the "addonInstallDir" setting in your config.toml file.
+3. Create a folder in your additional content directory, and give it the same name as your game folder from before.
+4. Copy your dumped DLCs to the folder you created.
+5. Once finished, your installed DLC should appear ingame.
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