mention queue limit can be set to 0

Author: timdeschryver

aspnetcore/performance/rate-limit.md

@@ -44,7 +44,7 @@ The preceding code:
 * Calls `AddFixedWindowLimiter` to create a fixed window limiter with a policy name of `"fixed"` and sets:
 * <xref:System.Threading.RateLimiting.FixedWindowRateLimiterOptions.PermitLimit> to 4 and the time <xref:System.Threading.RateLimiting.FixedWindowRateLimiterOptions.Window> to 12. A maximum of 4 requests per each 12-second window are allowed.
 * <xref:System.Threading.RateLimiting.FixedWindowRateLimiterOptions.QueueProcessingOrder> to <xref:System.Threading.RateLimiting.QueueProcessingOrder.OldestFirst>.
-* <xref:System.Threading.RateLimiting.FixedWindowRateLimiterOptions.QueueLimit> to 2.
+* <xref:System.Threading.RateLimiting.FixedWindowRateLimiterOptions.QueueLimit> to 2 (set this to 0 to disable the queueing mechanism).
 * Calls [UseRateLimiter](/dotnet/api/microsoft.aspnetcore.builder.ratelimiterapplicationbuilderextensions.useratelimiter) to enable rate limiting.
 
 Apps should use [Configuration](xref:fundamentals/configuration/index) to set limiter options. The following code updates the preceding code using [`MyRateLimitOptions`](https://github.com/dotnet/AspNetCore.Docs.Samples/blob/main/fundamentals/middleware/rate-limit/WebRateLimitAuth/Models/MyRateLimitOptions.cs) for configuration:
@@ -140,7 +140,7 @@ The <xref:System.Threading.RateLimiting.PartitionedRateLimiter.CreateChained%2A>
 
 The following code uses `CreateChained`:
 
-:::code language="csharp" source="~/../AspNetCore.Docs.Samples/fundamentals/middleware/rate-limit/WebRate2/Program.cs" id="snippet_3" highlight="21,51":::
+:::code language="csharp" source="~/../AspNetCore.Docs.Samples/fundamentals/middleware/rate-limit/WebRate2/Program.cs" id="snippet_3" highlight="19,20,33":::
 
 For more information, see the [CreateChained source code](https://github.com/dotnet/runtime/blob/79874806d246670ee5fe76e73ce566578fe675c0/src/libraries/System.Threading.RateLimiting/src/System/Threading/RateLimiting/PartitionedRateLimiter.cs#L52-L64)