Update links in License.html

Fix displayed URLs that didn't match actual linked URLs.

Remove broken link, mark as deleted and added "[link broken]" text.

Author: delphidabbler

Docs/License.html

@@ -5,7 +5,7 @@
  * v. 2.0. If a copy of the MPL was not distributed with this file, You can
  * obtain one at https://mozilla.org/MPL/2.0/
  *
- * Copyright (C) 2012-2022, Peter Johnson (gravatar.com/delphidabbler).
+ * Copyright (C) 2012-2023, Peter Johnson (gravatar.com/delphidabbler).
  *
  * CodeSnip license.
 -->
@@ -1615,7 +1615,7 @@ <h2 id="toolbar-icons-mit">
   <p>Toolbar Icons is made available under the terms of the MIT License.
   See <a
     href="https://toolbaricons.sourceforge.net/"
-  >http://toolbaricons.sourceforge.net/</a> for more information.</p>
+  >https://toolbaricons.sourceforge.net/</a> for more information.</p>
 
   <p>Copyright &copy; 2010 Florian Haag</p>
 
@@ -1674,12 +1674,10 @@ <h1>
       </div>
       <ul>
         <li>
-          Silk Icon Set 1.3 by Mark James: <a
-            href="http://www.famfamfam.com/lab/icons/silk/"
-          >http://www.famfamfam.com/lab/icons/silk/</a>.
+          Silk Icon Set 1.3 by Mark James: <del>http://www.famfamfam.com/lab/icons/silk/</del> [link broken].
         </li>
         <li>
-          Silk Companion 1 by Damien Guard: <del>https://www.damieng.com/icons/silkcompanion</del> [link broken]
+          Silk Companion 1 by Damien Guard: <del>https://www.damieng.com/icons/silkcompanion</del> [link broken].
         </li>
         <li>
           Led Icon Set v1.0: <del>http://led24.de/iconset/</del> [link broken].
@@ -1714,7 +1712,7 @@ <h1>
     <li>
       Some program icons are based on Florian Haag's Toolbar Icons set at <a
         href="https://toolbaricons.sourceforge.net/"
-      >http://toolbaricons.sourceforge.net/</a>.
+      >https://toolbaricons.sourceforge.net/</a>.
     </li>
     <li>
       Some images used in the program's Easter Egg are based on public domain