update readme for new version

README.md

@@ -86,6 +86,10 @@ the first row of results. Try doing that in one line with PDO.
 
     $account = DB::queryFirstRow("SELECT * FROM accounts WHERE username=%s", 'Joe');
 
+Or how about just one field?
+
+    $created_at = DB::queryFirstField("SELECT created_at FROM accounts WHERE username=%s", 'Joe');
+
 ### Work with list parameters easily
 Using MySQL's IN keyword should not be hard. MeekroDB smooths out the syntax for you, 
 PDO does not.
@@ -100,20 +104,6 @@ the useful and bizarre INSERT .. ON DUPLICATE UPDATE command. PDO does none of t
 
     DB::insert('accounts', array('username' => 'John', 'password' => 'whatever'));
 
-### Focus on the goal, not the task
-Want to do INSERT yourself rather than relying on DB::insert()? 
-It's dead simple. I don't even want to think about how many lines 
-you'd need to pull this off in PDO.
-
-    // Insert 2 rows at once
-      DB::query("INSERT INTO %b %lb VALUES %ll?", 'accounts',
-      array('username', 'password', 'last_login_timestamp'),
-      array(
-        array('Joe', 'joes_password', new DateTime('yesterday')),
-        array('Frank', 'franks_password', new DateTime('last Monday'))
-      )
-    );
-
 ### Nested transactions
 MySQL's SAVEPOINT commands lets you create nested transactions, but only 
 if you keep track of SAVEPOINT ids yourself. MeekroDB does this for you, 
@@ -130,18 +120,14 @@ so you can have nested transactions with no complexity or learning curve.
     // .. some queries..
     DB::commit(); // commit outer transaction
 
-### Flexible error and success handlers
-Set your own custom function run on errors, or on every query that succeeds. 
-You can easily have separate error handling behavior for the dev and live 
-versions of your application. Want to count up all your queries and their 
-runtime? Just add a new success handler.
+### Flexible debug logging and error handling
+You can log all queries (and any errors they produce) to a file for debugging purposes. You can also add hooks that let you run your own functions at any point in the query handling process.
+
 
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 ========
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