Fix bold tag

README.md

@@ -2,7 +2,7 @@
   <br>
   <a href="https://yuzu-emu.org/"><img src="https://raw.githubusercontent.com/yuzu-emu/yuzu-assets/master/icons/icon.png" alt="yuzu" width="200"></a>
   <br>
-  <b>yuzu<b>
+  <b>yuzu</b>
   <br>
 </h1>