added a link to the repository at the bottom of the page

index.html

@@ -14,6 +14,7 @@ <h1>UNDERTALE: Text Based Adventure Game (Work In Progress)</h1>
     <div id="output"></div>
     <input type="text" id="input" placeholder="* What do you want to do? (Type help for help and press ENTER to do action.)" />
     <script src="Assets/game.js"></script>
+    <h2>While you're at it, check out the <a href="https://github.com/AxolotlIsSickOfThisShit/Undertale-Text-Based-Adventure-W.I.P-">GitHub Repository</a> for the game!</h2>
 </body>
 
 </html>