README indentation fix

Author: Tiago Brenck

README.md

@@ -15,19 +15,19 @@ endpoint: AAD v2.0
 
 A Web API is secured by [validating the token](https://docs.microsoft.com/en-us/azure/active-directory/develop/access-tokens#validating-tokens) they receive from callers. When a developer generates a skeleton Web API code using [Visual Studio](https://aka.ms/vsdownload), token validation libraries and code to carry out basic token validation is automatically generated in the project. An example of the generated code using the [asp.net security middleware](https://github.com/aspnet/Security) and [Microsoft Identity Model Extension for .NET](https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet) to validate tokens is provided below.
 
-    ```CSharp
-    public void ConfigureAuth(IAppBuilder app)
+```CSharp
+public void ConfigureAuth(IAppBuilder app)
+{
+    app.UseWindowsAzureActiveDirectoryBearerAuthentication(
+        new WindowsAzureActiveDirectoryBearerAuthenticationOptions
         {
-            app.UseWindowsAzureActiveDirectoryBearerAuthentication(
-                new WindowsAzureActiveDirectoryBearerAuthenticationOptions
-                {
-                    Tenant = ConfigurationManager.AppSettings["ida:Tenant"],
-                    TokenValidationParameters = new TokenValidationParameters {
-                         ValidAudience = ConfigurationManager.AppSettings["ida:Audience"]
-                    },
-                });
-        }
-    ```
+            Tenant = ConfigurationManager.AppSettings["ida:Tenant"],
+            TokenValidationParameters = new TokenValidationParameters {
+                    ValidAudience = ConfigurationManager.AppSettings["ida:Audience"]
+            },
+        });
+}
+```
 
 The code above will validate the issuer,  audience, and the signing tokens, but often the developer's requirements are more than what the defaults provide. Examples of these requirements can be: