Complete modules section

exercises/modules/modules1.rs

@@ -2,7 +2,7 @@
 // Make me compile! Scroll down for hints :)
 
 mod sausage_factory {
-    fn make_sausage() {
+    pub fn make_sausage() {
         println!("sausage!");
     }
 }

exercises/modules/modules2.rs

@@ -2,8 +2,8 @@
 // Make me compile! Scroll down for hints :)
 
 mod delicious_snacks {
-    use self::fruits::PEAR as fruit;
-    use self::veggies::CUCUMBER as veggie;
+    pub use self::fruits::PEAR as fruit;
+    pub use self::veggies::CUCUMBER as veggie;
 
     mod fruits {
         pub const PEAR: &'static str = "Pear";