Add pldmgr custom repository (repo.json) and README section

README.md

@@ -29,6 +29,16 @@ make
 2. Open `http://<PS5-IP>:7777`
 3. Change settings, hit **Save**
 
+### Auto-Update via Payload Manager
+
+Add this URL as a Custom Source in [Payload Manager](https://github.com/itsPLK/ps5-payload-manager) (Settings → Manage Sources → Add Source):
+
+```
+https://raw.githubusercontent.com/KarnerF/SMPlusGui/main/repo.json
+```
+
+Payload Manager will detect new SMPlusGui releases and offer the update automatically.
+
 ---
 
 ## Credits

repo.json

@@ -0,0 +1,14 @@
+{
+  "name": "KarnerF Payloads",
+  "payloads": [
+    {
+      "name": "SMPlusGui",
+      "filename": "SMPlusGui.elf",
+      "url": "https://github.com/KarnerF/SMPlusGui/releases/download/v1.0.1/SMPlusGui_v1.0.1.elf",
+      "description": "Web-based configuration GUI for ShadowMountPlus",
+      "version": "v1.0.1",
+      "category": "ShadowMount",
+      "checksum": "e932617007724b44608e877c715403f8703560c66ebc7d2d4e9b4086602ecc21"
+    }
+  ]
+}