Update README.md

Signed-off-by: Joachim Fosse <56757601+joaf123@users.noreply.github.com>

Author: joaf123

README.md

@@ -24,7 +24,7 @@ ASP.NET HttpModule for verification of FormsAuthentication on requests, using cu
 
 <script RunAt="server">
     Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
-        Me.UseAuthorization()
+        Me.UseAuthentication()
     End Sub
 </script>
 ```