First quiz and its related modules

exercises/if/if2.rs

@@ -4,13 +4,13 @@
 // Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
 // Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 pub fn foo_if_fizz(fizzish: &str) -> &str {
-    if fizzish == "fizz" {
+    if fizzish == "fuzz" {
+        "bar"
+    } else if fizzish == "fizz" {
         "foo"
     } else {
-        1
+        "baz"
     }
 }