Updated supported platfomrs, by removing NET Core1

Author: snakefoot

index.html

@@ -144,17 +144,16 @@ <h4> <i class="fa fa-file-o fa-fw"></i>
             If you didn't find the target to fit your needs, you can
             <a href="https://github.com/NLog/NLog/wiki/Extending-NLog">easily extend NLog with a custom target</a>.
 
-
         </p>
     </section>
       <section>
         <h1 class="page-header" id="support">Support</h1>
         <div>
             NLog supports the following platforms:
             <ul>
-                <li>.NET 5, 6, 7 &amp; 8 (.NET Standard 2.0)</li>
+                <li>.NET 5, 6, 7, 8 &amp; 9 (.NET Standard 2.0)</li>
                 <li>.NET Framework 3.5 - 4.8</li>
-                <li>.NET Core 1.0 - 3.1</li>
+                <li>.NET Core 2.0 - 3.1 (.NET Standard)</li>
                 <li>Xamarin Android + iOS (.NET Standard)</li>
                 <li>UWP (.NET Standard)</li>
                 <li>Mono 4</li>