Updated readme

readme.md

@@ -1,18 +1,17 @@
 #Example usage
 
-```extern crate quake3_loader;
+(Assuming that the pk3 file is unzipped locally)
-use std::fs::{File};
-use std::path::{Path};
-use std::io::{Read};
 
-fn main() {
+    extern crate quake3_loader;
-    let path = Path::new("pak0/maps/q3dm1.bsp");
+    use std::fs::{File};
-    let mut file = File::open(path).unwrap();
+    use std::path::{Path};
-    let mut bytes = Vec::new();
+    use std::io::{Read};
-    file.read_to_end(&mut bytes).unwrap();
+    fn main() {
+        let path = Path::new("pak0/maps/q3dm1.bsp");
+        let mut file = File::open(path).unwrap();
+        let mut bytes = Vec::new();
+        file.read_to_end(&mut bytes).unwrap();
+        let bsp = quake3_loader::read_bsp(bytes);           
+        println!("{:?}", bsp);
+    }
 
-    let bsp = quake3_loader::read_bsp(bytes);
-           
-    println!("{:?}", bsp);
-}
-```