More generic readme example, remove emoji from readme, remove unused usings

SharpQuark/Lightquark.cs

-using System.Diagnostics;
-using System.Net.Http.Headers;
+using System.Net.Http.Headers;
 using System.Reflection;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using SharpQuark.Token;
 
 namespace SharpQuark;

readme.md

 ## C# API Wrapper for the Lightquark API
 
 > [!WARNING]
-> ⚠️ Supports API Versions V3 and up. V1 and V2 **ARE NOT** and **WILL NOT** be supported
+> Supports API Versions V3 and up. V1 and V2 **ARE NOT** and **WILL NOT** be supported
 
 ### Usage
 
@@ -15,7 +15,7 @@ var netInfo = await NetworkInformation.GetNetwork("https://equinox.lightquark.ne
 
 // To log in or make any other API calls we need to get the access and refresh tokens, which can be done in two
 // different ways. For example with email and password:
-var tokens = await TokenCredential.Login("testuser@litdevs.org", "wordpass", netInfo);
+var tokens = await TokenCredential.Login("email", "password", netInfo);
 // Or alternatively stored tokens can be used to get the TokenCredential directly, for example from strings:
 var tokens2 = new TokenCredential((AccessToken)Token.From("access token"), (RefreshToken)Token.From("refresh token"));