fixed code blocks in user documentation

IMPLEMENTATION_EXACT.md

@@ -1324,7 +1324,9 @@ Your Kobo's serial number is used as the **device identifier** to uniquely ident
 After approval, your Kobo device card shows:
 
 **Kobo Sync URL**:
+```
 http://192.168.1.100:8765/api/sync/kobo/dev_abc123def456...
+```
 
 1. Click **📋 Copy** button next to the URL
 2. This URL contains your device's API key
@@ -1346,7 +1348,9 @@ http://192.168.1.100:8765/api/sync/kobo/dev_abc123def456...
 2. Open `Kobo eReader.conf` file in text editor
 3. Find or add this line:
 
+```ini
 api_endpoint=http://YOUR_IP:8765/api/sync/kobo/YOUR_TOKEN
+```
 
 **Example**:
 api_endpoint=http://192.168.1.100:8765/api/sync/kobo/dev_73530191_937812_3abc4def5...
@@ -1372,7 +1376,9 @@ To browse and download books wirelessly:
    - **URL**: `http://YOUR_IP:8765/opds/devices/YOUR_DEVICE_ID/catalog?token=YOUR_TOKEN`
 
 **Example**:
+```
 http://192.168.1.100:8765/opds/devices/550e8400-e29b-41d4-a716-4466554400000/catalog?token=dev_73530191_937812_3abc4def5...
+```
 
 ## Step 7: Test Sync