fpc/teaser/index.html: convert UTF-8 to HTML entities

Stupid Docker container not supporting UTF-8 :(

static/fpc/teaser/index.html

@@ -22,7 +22,7 @@ <h4>FPC 2023 First Teaser Puzzle</h2>
 					<div class="black" style="padding: 25px; overflow: hidden;">
 						<img src="neon.png" class="problemicon">
 						<p>
-							Late in the evening, you are sitting at the Funky Punk Café
+							Late in the evening, you are sitting at the Funky Punk Caf&eacute;
 							and feeling a bit bored because you have not done any programming all day. You stare out of the window and see that
 							the text on the neon signs gets reflected in a funny way: the
 							letters are partially overlapping, because the window is made
@@ -34,8 +34,8 @@ <h4>FPC 2023 First Teaser Puzzle</h2>
 							the reflection when it accounts for the mirroring, except that all the letters are duplicated.
 							Moreover, if the text on the sign contains double (or more) letters, their reflection partially
 							overlaps, resulting in only one more letter than there would be in the original word. For
-							example, the word “beer” is reflected as “bbeeerr”, and the word “ooo” is reflected as
-							“oooo”. All that is left for you to do, is to write a program that converts these reflected
+							example, the word &ldquo;beer&rdquo; is reflected as &ldquo;bbeeerr&rdquo;, and the word &ldquo;ooo&rdquo; is reflected as
+							&ldquo;oooo&rdquo;. All that is left for you to do, is to write a program that converts these reflected
 							words back to their original form. 
 						</p>