small cleanup

README.md

@@ -17,12 +17,9 @@ fn main() {
     let db = RocksDB::open_default("/path/for/rocksdb/storage").unwrap;
     db.put(b"my key", b"my value");
     db.get(b"my key")
-        .map( |value| { match value.to_utf8() {
+        .map( |value| { 
-            Some(v) =>
+            println!("retrieved value {}", value.to_utf8().unwrap()),
-                println!("retrieved utf8 value {}", v),
+        })
-            None =>
-                println!("did not read valid utf-8 out of the db"),
-        }})
         .on_absent( || { println!("value not found") })
         .on_error( |e| { println!("operational problem encountered: {}", e) });