Update README.md

Author: frewsxcv

README.md

@@ -43,7 +43,7 @@ use lazy_static::lazy_static;
 use std::collections::HashMap;
 
 lazy_static! {
-    static ref HASHMAP: HashMap<u32, &'static str> = {
+    static ref HASHMAP: HashMap<u32, &str> = {
         let mut m = HashMap::new();
         m.insert(0, "foo");
         m.insert(1, "bar");