update readme to include delete

README.md

@@ -22,9 +22,10 @@ fn main() {
             println!("retrieved utf8 value {}", v),
           None =>
             println!("did not read valid utf-8 out of the db"),
-        }});
+        }
+      }).on_absent(|| { println!("value not found") });
 
-      db.get(b"NOT my key").on_absent( || { println!("value not found") });
+      db.delete(b"my key");
 
       db.close();
     },

src/main.rs

@@ -7,23 +7,20 @@ use test::Bencher;
 fn main() {
   match rocksdb::create_or_open("/tmp/rust-rocksdb".to_string()) {
     Ok(db) => {
-      for i in range(0u, 20) {
-        spawn(proc() {
-          db.put(b"my key", b"my value");
+      db.put(b"my key", b"my value");
 
-          db.get(b"my key").map( |value| {
-            match value.to_utf8() {
-              Some(v) =>
-                println!("retrieved utf8 value {}", v),
-              None =>
-                println!("did not read valid utf-8 out of the db"),
-            }});
+      db.get(b"my key").map( |value| {
+        match value.to_utf8() {
+          Some(v) =>
+            println!("retrieved utf8 value {}", v),
+          None =>
+            println!("did not read valid utf-8 out of the db"),
+        }
+      }).on_absent(|| { println!("value not found") });
 
-          db.get(b"NOT my key").on_absent(|| { println!("value not found") });
+      db.delete(b"my key");
 
-          db.close();
-        });
-      }
+      db.close();
     },
     Err(e) => panic!(e),
   }