Fix docs snippets for naming policy

Author: xoofx

site/docs/serialization.md

@@ -37,7 +37,7 @@ var config = TomlSerializer.Deserialize<MyConfig>(stream);
 using System.Text;
 using Tomlyn;
 
-var utf8 = Encoding.UTF8.GetBytes("name = \"Ada\"");
+var utf8 = Encoding.UTF8.GetBytes("Name = \"Ada\"");
 var person = TomlSerializer.Deserialize<Person>(utf8);
 ```
 

site/readme.md

@@ -32,16 +32,19 @@ og_type: website
     <div class="card-body">
 
 ```csharp
+using System.Text.Json;
 using Tomlyn;
 
 public sealed record Person(string Name, int Age);
 
-var toml = TomlSerializer.Serialize(new Person("Ada", 37));
+var options = new TomlSerializerOptions { PropertyNamingPolicy = JsonNamingPolicy.CamelCase };
+
+var toml = TomlSerializer.Serialize(new Person("Ada", 37), options);
 
 // name = "Ada"
 // age = 37
 
-var person = TomlSerializer.Deserialize<Person>(toml);
+var person = TomlSerializer.Deserialize<Person>(toml, options);
 ```
 
 </div>