Merge pull request #681 from iirelu/learnc-fix

Commented out two broken lines in learnc.c

c.html.markdown

@@ -281,10 +281,10 @@ int main() {
   // branching with multiple choices: switch()
   switch (a) {
   case 0: // labels need to be integral *constant* expressions
-    do_stuff();
+    printf("Hey, 'a' equals 0!\n");
     break; // if you don't break, control flow falls over labels
   case 1:
-    do_something_else();
+    printf("Huh, 'a' equals 1!\n");
     break;
   default:
     // if `some_integral_expression` didn't match any of the labels
@@ -293,7 +293,6 @@ int main() {
     break;
   }
 
-
   ///////////////////////////////////////
   // Typecasting
   ///////////////////////////////////////