Minor typo fixup (bevyengine#8405)

# Objective

Fix two small typos in example description

Cargo.toml

@@ -1670,7 +1670,7 @@ path = "examples/ecs/nondeterministic_system_order.rs"
 
 [package.metadata.example.nondeterministic_system_order]
 name = "Nondeterministic System Order"
-description = "Systems run in paralell, but their order isn't always deteriministic. Here's how to detect and fix this."
+description = "Systems run in parallel, but their order isn't always deterministic. Here's how to detect and fix this."
 category = "ECS (Entity Component System)"
 wasm = false
 

examples/README.md

@@ -209,7 +209,7 @@ Example | Description
 [Generic System](../examples/ecs/generic_system.rs) | Shows how to create systems that can be reused with different types
 [Hierarchy](../examples/ecs/hierarchy.rs) | Creates a hierarchy of parents and children entities
 [Iter Combinations](../examples/ecs/iter_combinations.rs) | Shows how to iterate over combinations of query results
-[Nondeterministic System Order](../examples/ecs/nondeterministic_system_order.rs) | Systems run in paralell, but their order isn't always deteriministic. Here's how to detect and fix this.
+[Nondeterministic System Order](../examples/ecs/nondeterministic_system_order.rs) | Systems run in parallel, but their order isn't always deterministic. Here's how to detect and fix this.
 [Parallel Query](../examples/ecs/parallel_query.rs) | Illustrates parallel queries with `ParallelIterator`
 [Removal Detection](../examples/ecs/removal_detection.rs) | Query for entities that had a specific component removed earlier in the current frame
 [Run Conditions](../examples/ecs/run_conditions.rs) | Run systems only when one or multiple conditions are met