added better documentation and code snipppets for the use_resource, use_future, use_effect and use_context hooks

packages/signals/src/impls.rs

@@ -5,6 +5,7 @@ use crate::write::Writable;
 use crate::{GlobalMemo, GlobalSignal, MappedSignal, ReadOnlySignal, SignalData};
 use generational_box::{AnyStorage, Storage};
 
+use std::ops::Index;
 use std::{
     fmt::{Debug, Display},
     ops::{Add, Div, Mul, Sub},

packages/signals/src/signal.rs

@@ -10,8 +10,8 @@ use generational_box::{AnyStorage, Storage, SyncStorage, UnsyncStorage};
 use std::{
     any::Any,
     collections::HashSet,
-    ops::{Deref, DerefMut},
-    sync::Mutex,
+    ops::{Deref, DerefMut, Index, IndexMut},
+    sync::{Arc, Mutex},
 };
 
 /// Creates a new Signal. Signals are a Copy state management solution with automatic dependency tracking.