Update index.html

Author: Vanish-Coder

index.html

@@ -10,7 +10,7 @@
   <!-- License popup -->
   <div id="licensePopup" class="popup">
     <div class="popup-content">
-      <p>This site is under an MIT License. No personal data is collected and cookies are sparingly used, only when necessary (such as for remembering user choices, never for tracking or analytics). The source code is open source and you can view it <a href="https://github.com/Vanish-Coder/spelling-bee-practice" target="_blank">here</a>.</p>
+      <p>This site is under an GNU GPL-v3 License. No personal data is collected and cookies are sparingly used, only when necessary (such as for remembering user choices, never for tracking or analytics). The source code is open source and you can view it <a href="https://github.com/Vanish-Coder/spelling-bee-practice" target="_blank">here</a>.</p>
       <label style="display:inline-block; margin-top: 0.5rem;"><input type="checkbox" id="dontShowAgain"> Don't show again</label>
       <button id="closePopup" style="margin-top:0.5rem;">Got it</button>
     </div>