fix: Update base code in runner.html

Update code in template/runner.html to adhere to the new assignment syntax

templates/runner.html

@@ -22,15 +22,15 @@
         <textarea class="ui form control" name="input" id="input" cols="100" rows="30">
             programa {
 
-              const real C = 5.5
+              const real C ← 5.5
 
               funcao inicio() {
 
-               inteiro a = 8
+               inteiro a ← 8
                se (a * C > 80) {
-                a = 0
+                a ← 0
                } senao {
-                 a = -1
+                 a ← -1
                }
               }
              }