Use world::insert instead of world::add_resource in tutorials.

CONTRIBUTING.md

@@ -54,14 +54,14 @@ Number 1 is served by [`shred`](https://github.com/slide-rs/shred); it provides
 
 * `System`; this is the central interface for defining logic
 * `Dispatcher` and `DispatcherBuilder` - these are responsible for building a plan for how to run systems
-  (in parallel & sequentially) 
+  (in parallel & sequentially)
 
 Additionally, `shred` also provides the central piece for number 2:
 
-* `Resources`; everything that a `System` can access is stored inside
+* `World`; everything that a `System` can access is stored inside.
 
-Specs itself defines component storages (which are also stored inside the `Resources`).
-For those, [`hibitset`](https://github.com/slide-rs/hibitset/) is used to
+Specs itself defines component storages (which are also stored inside the `World`).
+For those, [`hibitset`](https://github.com/slide-rs/hibitset/) is used to:
 
 * store the indices (= entity ids) with an existing component
 * allow efficient joining over sparse component storages

docs/tutorials/src/04_resources.md

@@ -67,7 +67,7 @@ impl<'a> System<'a> for UpdatePos {
 ```
 
 Note that all resources that a system accesses must be registered with
-`world.add_resource(resource)` before that system is run, or you will get a
+`world.insert(resource)` before that system is run, or you will get a
 panic. If the resource has a `Default` implementation, this step is usually 
 done during `setup`, but again we will come back to this in a later chapter.
 

docs/tutorials/src/07_setup.md

@@ -3,7 +3,7 @@
 So far for all our component storages and resources, we've been adding
 them to the `World` manually. In Specs, this is not required if you use
 `setup`. This is a manually invoked stage that goes through `SystemData`
-and calls `register`, `add_resource`, etc. for all (with some exceptions)
+and calls `register`, `insert`, etc. for all (with some exceptions)
 components and resources found. The `setup` function can be found in
 the following locations:
 
@@ -46,7 +46,7 @@ impl<'a> System<'a> for SimulationSystem {
 
 fn main() {
     let mut world = World::new();
-    world.add_resource(Gravity);
+    world.insert(Gravity);
     world.register::<Velocity>();
 
     for _ in 0..5 {

docs/tutorials/src/10_rendering.md

@@ -37,7 +37,7 @@ This is what your code could look like:
 ```rust,ignore
 struct ResizeEvents(Vec<(u32, u32)>);
 
-world.add_resource(ResizeEvents(Vec::new()));
+world.insert(ResizeEvents(Vec::new()));
 
 while let Some(event) = window.poll_event() {
     match event {

docs/tutorials/src/13_saveload.md

@@ -28,10 +28,10 @@ fn main() {
     let mut world = World::new();
 
     world.register::<SimpleMarker<NetworkSync>>();
-    world.add_resource(SimpleMarkerAllocator::<NetworkSync>::default());
+    world.insert(SimpleMarkerAllocator::<NetworkSync>::default());
 
     world.register::<SimpleMarker<FilePersistent>>();
-    world.add_resource(SimpleMarkerAllocator::<FilePersistent>::default());
+    world.insert(SimpleMarkerAllocator::<FilePersistent>::default());
 
     world
         .create_entity()
@@ -96,7 +96,7 @@ fn main() {
     let mut world = World::new();
 
     world.register::<MyMarker>();
-    world.add_resource(MyMarkerAllocator::default());
+    world.insert(MyMarkerAllocator::default());
 
     world
         .create_entity()