Update README.md

README.md

@@ -26,21 +26,50 @@ dotnet add package PropelAuth
 
 ## Initialize
 
-`AddPropelAuthAsync` performs a one-time initialization of the library. 
-It will verify your `apiKey` is correct and fetch the metadata needed to verify access tokens in [GetUser](https://docs.propelauth.com/reference/backend-apis/dot-net#protect-api-routes).
+Begin by navigating to the **Backend Integration** page of the PropelAuth Dashboard and copying your **Auth URL** and **Public Verifier Key**. These values will be used to validate [access tokens](https://docs.propelauth.com/recipes/access-tokens) generated by your frontend. Paste these values into your .NET project.
 
+```csharp
+var AUTH_URL = "https://auth.example.com";
+var PUBLIC_KEY = @"-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1DsxqIjXqM0i5PL6kFVa
+280S3gl96n2YlO6l9ss2XD/GOoDM11LxnwlIBWFXeRGhOVi4dp2pefY4Bh2rg4Z8
+/Nq1J..
+-----END PUBLIC KEY-----
+";
+```
+
+We'll be using the [System.Security.Cryptography Namespace](https://learn.microsoft.com/en-us/dotnet/api/system.security.cryptography?view=net-9.0) to import the **Public Verifier Key**.
 
 ```csharp
-using System.Security.Claims;
-using PropelAuth;
-using PropelAuth.Models;
+using System.Security.Cryptography;
 
-var builder = WebApplication.CreateBuilder(args);
+var rsa = RSA.Create();
+rsa.ImportFromPem(PUBLIC_KEY);
+```
+
+Next, let's configure our app to use JWT authentication. This will allow us to validate access tokens and retrieve user information from them.
 
-await builder.Services.AddPropelAuthAsync(new PropelAuthOptions(
-    apiKey: "YOUR_API_KEY",
-    authUrl: "YOUR_AUTH_URL"
-));
+
+```csharp
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.IdentityModel.Tokens;
+
+builder.Services.AddAuthentication(options =>
+{
+    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
+    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+}).AddJwtBearer(options =>
+{
+    options.TokenValidationParameters = new TokenValidationParameters
+    {
+        ValidateAudience = false,
+        ValidAlgorithms = new List<string>() {"RS256"},
+        ValidIssuer = AUTH_URL,
+        IssuerSigningKey = new RsaSecurityKey(rsa),
+        ValidateLifetime = true,
+        ClockSkew = TimeSpan.Zero 
+    };
+});
 ```
 
 ---
@@ -53,6 +82,9 @@ The `PropelAuth` .NET library provides a User Class to validate the access token
 If the access token is not valid, the user's properties will be set to null. If that's the case, you can use .NET's [Results Class](https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.http.results?view=aspnetcore-8.0) to return a `401 Unauthorized` error.
 
 ```csharp
+using PropelAuth.Models;
+using System.Security.Claims;
+
 app.MapGet("/", (ClaimsPrincipal claimsPrincipal) =>
 {
     var user = claimsPrincipal.GetUser();