Add UTF-8 encoding declaration to advertisement partial for proper character display

Author: malkoG

src/_partials/_vim_kr_advertisement.erb

@@ -1,3 +1,2 @@
-
-<pre class="mx-0 md:mx-8 mb-8 rounded-xl py-6 px-6 bg-lime-100 text-gray-900 overflow-visible break-words"><div class="flex flex-col md:flex-row justify-start items-start md:items-center"><i class="bi w-16 text-4xl mb-2 md:mb-0 bi-info-circle font-extrabold"></i><p class="m-0 p-0 leading-6 md:leading-8 text-sm md:text-lg">혹시 이 글을 읽고 Vim에 관심을 가지게 되셨나요?<br/>Vim에 관심있는 사람들을 위한 Discord 커뮤니티 <br/><a href="https://vim.kr">vim.kr</a> 바로 여러분들을 위한 커뮤니티입니다.</p></div></pre>
-
+<%# -*- coding: utf-8 -*- %>
+<pre class="mx-0 md:mx-8 mb-8 rounded-xl py-6 px-6 bg-lime-100 text-gray-900 overflow-visible break-words"><div class="flex flex-col md:flex-row justify-start items-start md:items-center"><i class="bi w-16 text-4xl mb-2 md:mb-0 bi-info-circle font-extrabold"></i><p class="m-0 p-0 leading-6 md:leading-8 text-sm md:text-lg">&#xD639;&#xC2DC; &#xC774; &#xAE00;&#xC744; &#xC77D;&#xACE0; Vim&#xC5D0; &#xAD00;&#xC2EC;&#xC744; &#xAC00;&#xC9C0;&#xAC8C; &#xB418;&#xC168;&#xB098;&#xC694;?<br/>Vim&#xC5D0; &#xAD00;&#xC2EC;&#xC788;&#xB294; &#xC0AC;&#xB78C;&#xB4E4;&#xC744; &#xC704;&#xD55C; Discord &#xCEE4;&#xBBA4;&#xB2C8;&#xD2F0 <br/><a href="https://vim.kr">vim.kr</a> &#xBC14;&#xB85C; &#xC5EC;&#xB7EC;&#xBD84;&#xB4E4;&#xC744; &#xC704;&#xD55C; &#xCEE4;&#xBBA4;&#xB2C8;&#xD2F0;&#xC785;&#xB2C8;&#xB2E4;.</p></div></pre>