:beers: Fix typo in ProgC supervision 1 code

files/ProgC/supervision_1.html

@@ -18,7 +18,7 @@
     <p>Does the following code terminate? And if so, under which conditions?</p>
 
     <pre>
-    char i, j; language-char i, j;
+    char i, j;
     for (i = 0; i &lt; 10, j &lt; 5; i++, j++);
     </pre>
 
@@ -186,4 +186,4 @@
 
 </body>
 
-</html>
+</html>