Documentation: Added example of item_links

WebHostLib/static/assets/tutorial/Archipelago/advanced_settings_en.md

@@ -122,6 +122,8 @@ guide: [Archipelago Plando Guide](/tutorial/archipelago/plando/en)
 
 * `exclude_locations` lets you define any locations that you don't want to do and during generation will force a "junk"
   item which isn't necessary for progression to go in these locations.
+* `item_links` allows you to link up items so that when one players finds the item all other participating players also 
+  get it.
 
 ### Random numbers
 
@@ -171,6 +173,12 @@ A Link to the Past:
     - Spike Cave
   exclude_locations:
     - Cave 45
+  item_links:
+    - name: rods
+      item_pool:
+        - Fire Rod
+        - Ice Rod
+      replacement_item: "Rupee (1)"
 triggers:
   - option_category: A Link to the Past
     option_name: smallkey_shuffle
@@ -214,6 +222,8 @@ triggers:
 * `start_location_hints` gives us a starting hint for the `Spike Cave` location available at the beginning of the
   multiworld that can be used for no cost.
 * `exclude_locations` forces a not important item to be placed on the `Cave 45` location.
+* `item_links` causes all players with the same `item_links` settings to share a `Fire Rod` and `Ice Rod`. Extra 
+  `Rupee (1)` are put in the item pool instead of additional Rods.
 
 * `triggers` allows us to define a trigger such that if our `smallkey_shuffle` option happens to roll the `any_world`
   result it will also ensure that `bigkey_shuffle`, `map_shuffle`, and `compass_shuffle` are also forced to