typo

Author: friflo

src/ECS/Index/Internal/StoreIndex.cs

@@ -57,6 +57,6 @@ private static AbstractComponentIndex[] CreateStoreIndexMap()
     }
 
     internal static void ThrowIndexedComponentValueNotFound() {
-        throw new InvalidOperationException("Indexed component value not found. Reason: indexed values mus not be changed. See: https://friflo.gitbook.io/friflo.engine.ecs/documentation/component-index#indexed-components");
+        throw new InvalidOperationException("Indexed component value not found. Reason: indexed values MUST NOT be changed. See: https://friflo.gitbook.io/friflo.engine.ecs/documentation/component-index#indexed-components");
     }
 }

src/Tests/ECS/Index/Test_Index_Delete.cs

@@ -191,7 +191,7 @@ public static void TestDeleteEntity() {
         var e = Throws<InvalidOperationException>(() => {
             child.DeleteEntity();    
         });
-        AreEqual("Indexed component value not found. Reason: indexed values mus not be changed. See: https://friflo.gitbook.io/friflo.engine.ecs/documentation/component-index#indexed-components", e!.Message);
+        AreEqual("Indexed component value not found. Reason: indexed values MUST NOT be changed. See: https://friflo.gitbook.io/friflo.engine.ecs/documentation/component-index#indexed-components", e!.Message);
     }
 }