fixed Json.NET casing (#23697)

aspnetcore/performance/performance-best-practices.md

@@ -235,7 +235,7 @@ Naively storing a large request or response body into a single `byte[]` or `stri
 
 ## Working with a synchronous data processing API
 
-When using a serializer/de-serializer that only supports synchronous reads and writes (for example,  [JSON.NET](https://www.newtonsoft.com/json/help/html/Introduction.htm)):
+When using a serializer/de-serializer that only supports synchronous reads and writes (for example,  [Json.NET](https://www.newtonsoft.com/json/help/html/Introduction.htm)):
 
 * Buffer the data into memory asynchronously before passing it into the serializer/de-serializer.
 

aspnetcore/signalr/configuration.md

@@ -1581,7 +1581,7 @@ HubConnection hubConnection = HubConnectionBuilder.create("https://example.com/c
 
 ASP.NET Core SignalR supports two protocols for encoding messages: [JSON](https://www.json.org/) and [MessagePack](https://msgpack.org/index.html). Each protocol has serialization configuration options.
 
-JSON serialization can be configured on the server using the [AddJsonProtocol](/dotnet/api/microsoft.extensions.dependencyinjection.jsonprotocoldependencyinjectionextensions.addjsonprotocol) extension method, which can be added after [AddSignalR](/dotnet/api/microsoft.extensions.dependencyinjection.signalrdependencyinjectionextensions.addsignalr) in your `Startup.ConfigureServices` method. The `AddJsonProtocol` method takes a delegate that receives an `options` object. The [PayloadSerializerSettings](/dotnet/api/microsoft.aspnetcore.signalr.jsonhubprotocoloptions.payloadserializersettings) property on that object is a JSON.NET `JsonSerializerSettings` object that can be used to configure serialization of arguments and return values. For more information, see the [JSON.NET documentation](https://www.newtonsoft.com/json/help/html/Introduction.htm).
+JSON serialization can be configured on the server using the [AddJsonProtocol](/dotnet/api/microsoft.extensions.dependencyinjection.jsonprotocoldependencyinjectionextensions.addjsonprotocol) extension method, which can be added after [AddSignalR](/dotnet/api/microsoft.extensions.dependencyinjection.signalrdependencyinjectionextensions.addsignalr) in your `Startup.ConfigureServices` method. The `AddJsonProtocol` method takes a delegate that receives an `options` object. The [PayloadSerializerSettings](/dotnet/api/microsoft.aspnetcore.signalr.jsonhubprotocoloptions.payloadserializersettings) property on that object is a Json.NET `JsonSerializerSettings` object that can be used to configure serialization of arguments and return values. For more information, see the [Json.NET documentation](https://www.newtonsoft.com/json/help/html/Introduction.htm).
  
 For example, to configure the serializer to use "PascalCase" property names, rather than the default [camel case](https://wikipedia.org/wiki/Camel_case) names, use the following code in `Startup.ConfigureServices`:
  
@@ -1931,7 +1931,7 @@ HubConnection hubConnection = HubConnectionBuilder.create("https://example.com/c
 
 ASP.NET Core SignalR supports two protocols for encoding messages: [JSON](https://www.json.org/) and [MessagePack](https://msgpack.org/index.html). Each protocol has serialization configuration options.
 
-JSON serialization can be configured on the server using the [AddJsonProtocol](/dotnet/api/microsoft.extensions.dependencyinjection.jsonprotocoldependencyinjectionextensions.addjsonprotocol) extension method, which can be added after [AddSignalR](/dotnet/api/microsoft.extensions.dependencyinjection.signalrdependencyinjectionextensions.addsignalr) in your `Startup.ConfigureServices` method. The `AddJsonProtocol` method takes a delegate that receives an `options` object. The [PayloadSerializerSettings](/dotnet/api/microsoft.aspnetcore.signalr.jsonhubprotocoloptions.payloadserializersettings) property on that object is a JSON.NET `JsonSerializerSettings` object that can be used to configure serialization of arguments and return values. For more information, see the [JSON.NET documentation](https://www.newtonsoft.com/json/help/html/Introduction.htm).
+JSON serialization can be configured on the server using the [AddJsonProtocol](/dotnet/api/microsoft.extensions.dependencyinjection.jsonprotocoldependencyinjectionextensions.addjsonprotocol) extension method, which can be added after [AddSignalR](/dotnet/api/microsoft.extensions.dependencyinjection.signalrdependencyinjectionextensions.addsignalr) in your `Startup.ConfigureServices` method. The `AddJsonProtocol` method takes a delegate that receives an `options` object. The [PayloadSerializerSettings](/dotnet/api/microsoft.aspnetcore.signalr.jsonhubprotocoloptions.payloadserializersettings) property on that object is a Json.NET `JsonSerializerSettings` object that can be used to configure serialization of arguments and return values. For more information, see the [Json.NET documentation](https://www.newtonsoft.com/json/help/html/Introduction.htm).
  
 For example, to configure the serializer to use "PascalCase" property names, rather than the default [camel case](https://wikipedia.org/wiki/Camel_case) names, use the following code in `Startup.ConfigureServices`:
  

aspnetcore/tutorials/first-mongo-app.md

@@ -341,7 +341,7 @@ There are two details to change about the JSON responses returned in the [Test t
 
 To satisfy the preceding requirements, make the following changes:
 
-1. JSON.NET has been removed from ASP.NET shared framework. Add a package reference to [`Microsoft.AspNetCore.Mvc.NewtonsoftJson`](https://nuget.org/packages/Microsoft.AspNetCore.Mvc.NewtonsoftJson).
+1. Json.NET has been removed from ASP.NET shared framework. Add a package reference to [`Microsoft.AspNetCore.Mvc.NewtonsoftJson`](https://nuget.org/packages/Microsoft.AspNetCore.Mvc.NewtonsoftJson).
 
 1. In `Startup.ConfigureServices`, chain the following highlighted code on to the `AddControllers` method call: