Update migration guide to cover VisibleEntities (#2059)

Author: alice-i-cecile

release-content/0.16/migration-guides/16812_Remove_the_type_parameter_from_check_visibility_and_only_i.md

@@ -1 +1,15 @@
-- `check_visibility` no longer takes a `QueryFilter`, and there’s no need to add it manually to your app schedule anymore for custom rendering items. Instead, entities with custom renderable components should add the appropriate type IDs to `VisibilityClass`. See `custom_phase_item` for an example.
+`check_visibility` no longer takes a `QueryFilter`, and there’s no need to add it manually to your app schedule anymore for custom rendering items. Instead, entities with custom renderable components should add the appropriate type IDs to `VisibilityClass`. See `custom_phase_item` for an example.
+
+Similarly, all methods on `VisibleEntities` (such as `get` and `iter`) no longer take a generic parameter, and instead must be passed a `TypeId` corresponding to the component used in the `VisibilityClass` of the entity.
+
+Before:
+
+```rust
+visible_entities.get_mut<With<Mesh3d>>();
+```
+
+After:
+
+```rust
+visible_entities.get_mut(TypeId::of::<Mesh3d>());
+```

release-content/0.16/migration-guides/_guides.toml

@@ -822,7 +822,7 @@ areas = ["Rendering"]
 file_name = "17063_Refactor_and_simplify_custom_projections.md"
 
 [[guides]]
-title = "Remove the type parameter from `check_visibility`, and only invoke it once."
+title = "Remove the type parameter from `check_visibility` and `VisibleEntities`"
 prs = [16812]
 areas = ["Rendering"]
 file_name = "16812_Remove_the_type_parameter_from_check_visibility_and_only_i.md"