Fix: Clarify installation options and warn about copied files

- README: Add Option A (direct include) as recommended method
- README: Add Option B (copy) with warning about manual updates
- install.sh: Detect direct include vs copied files
- README: Add troubleshooting for 'Error loading template' after update

The root cause: Moonraker updates the repo, but copied files in
~/printer_data/config/calibration/ don't get updated automatically.

Solution: Use direct include [include open4neptune-new/calibration/*.cfg]
so files are always loaded from the repo.

README.md

@@ -25,6 +25,22 @@ Restart Moonraker, then update directly from Mainsail/Fluidd UI! 🎉
 
 ### 3. Install Configs
 
+**⚠️ IMPORTANT: Choose ONE option!**
+
+#### Option A: Direct Include (Recommended!) ✅
+Files stay in repo, auto-update via Moonraker:
+
+```ini
+# Add to moonraker.conf or printer.cfg:
+[include open4neptune-new/calibration/*.cfg]
+[include open4neptune-new/user_settings_clean.cfg]
+```
+
+**Advantage:** Updates automatically via Moonraker UI!
+
+#### Option B: Copy Files (Legacy)
+Files copied to config folder, manual updates:
+
 ```bash
 # Copy calibration macros
 cp -r open4neptune-new/calibration/ ~/printer_data/config/
@@ -33,6 +49,8 @@ cp -r open4neptune-new/calibration/ ~/printer_data/config/
 cp open4neptune-new/user_settings_clean.cfg ~/printer_data/config/user_settings.cfg
 ```
 
+**⚠️ Warning:** These copies won't auto-update! You must re-run the copy command after each update, or switch to Option A.
+
 ### 4. Restart Klipper
 
 **Mainsail/Fluidd:** Machine → Restart Firmware
@@ -185,6 +203,22 @@ ls ~/printer_data/config/calibration/
 grep "calibration" ~/printer_data/config/printer.cfg
 ```
 
+### ⚠️ Error After Update: "Error loading template"
+
+If you get template errors after updating via Moonraker, you likely have **copied files** that weren't updated:
+
+```bash
+# Check for duplicate files
+find ~/printer_data -name "test_patterns.cfg"
+
+# If you see multiple files, remove the old copy:
+rm ~/printer_data/config/calibration/test_patterns.cfg
+
+# Or switch to direct include (recommended):
+# Add to moonraker.conf: [include open4neptune-new/calibration/*.cfg]
+# Then remove the copied calibration/ folder
+```
+
 ### Update Manager Not Showing
 
 ```bash

install.sh

@@ -22,9 +22,19 @@ echo ""
 # Check if calibration folder exists
 if [ -d "$SCRIPT_DIR/calibration" ]; then
     echo "✓ Found calibration folder"
+    
+    # Check if using direct include (recommended) or copied files
+    if [ -d "$CONFIG_DIR/open4neptune-new/calibration" ]; then
+        echo "  ℹ Using direct include from repo (recommended!)"
+        echo "    No copy needed - files update automatically"
+    else
         echo "  Copying to config directory..."
         cp -r "$SCRIPT_DIR/calibration" "$CONFIG_DIR/"
         echo "  ✓ Calibration macros installed"
+        echo "  ⚠️ Note: Copied files won't auto-update!"
+        echo "    Consider switching to direct include:"
+        echo "    [include open4neptune-new/calibration/*.cfg]"
+    fi
 else
     echo "✗ Calibration folder not found"
 fi