Fix grammar for error page button (#410)

Change "Get Trophy's" to "Get Trophies".

Author: ArtofBugs

api/index.ts

@@ -58,7 +58,7 @@ async function app(req: Request): Promise<Response> {
       </div>
       <div>
         <h2>You can use this form: </h2>
-        <p>Enter your username and click get trophies</p>
+        <p>Enter your username and click "Get Trophies"</p>
         <form action="${base}" method="get">
           <label for="username">GitHub Username</label>
           <input type="text" name="username" id="username" placeholder="Ex. gabriel-logan" required>
@@ -69,7 +69,7 @@ async function app(req: Request): Promise<Response> {
             <a href="https://github.com/ryo-ma/github-profile-trophy?tab=readme-ov-file#apply-theme" target="_blank">here</a>
           </text>
           <br>
-          <button type="submit">Get Trophy&apos;s</button>
+          <button type="submit">Get Trophies</button>
         </form>
       </div>
       <script>