moving lesson 2 assets to common asset directory

lesson02/src/main.rs

@@ -48,7 +48,7 @@ fn init() -> Canvas<Window> {
 }
 
 
-fn load_media(filename:&str) -> Surface { // -> &'static Texture {
+fn load_media(filename:&str) -> Surface {
     // having difficulty with lifetimes. Going to try to use a TextureCreator
     // to get around that problem for now.
 
@@ -67,7 +67,7 @@ fn main() {
     let mut canvas = init();
 
 
-    let surface = load_media("assets/hello_world.bmp");
+    let surface = load_media("../assets/hello_world.bmp");
 
 
     let tc = canvas.texture_creator();