Improve speed, add lightmaps and light volumes, allow parsing entity section

readme.md

@@ -2,16 +2,13 @@
 
 (Assuming that the pk3 file is unzipped locally)
 
-    extern crate quake3_loader;
-    use std::fs::{File};
-    use std::path::{Path};
-    use std::io::{Read};
-    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);
-    }
+```rust
+extern crate quake3_loader;
+use std::fs::{File};
 
+fn main() {
+    let mut file = File::open("pak0/maps/q3dm1.bsp").unwrap();
+    let bsp = quake3_loader::read_bsp(&file);
+    println!("{:?}", bsp);
+}
+```