Cleaned up the docs to not mention a private API. (Instead of pointin…

…g to "update:withErrorAndBindings:", I should really clean up that method and then document it.)

README.markdown

@@ -44,7 +44,7 @@ Before you can interact with the database, it must be opened.  Opening fails if
 
 Any sort of SQL statement which is not a `SELECT` statement qualifies as an update.  This includes `CREATE`, `PRAGMA`, `UPDATE`, `INSERT`, `ALTER`, `COMMIT`, `BEGIN`, `DETACH`, `DELETE`, `DROP`, `END`, `EXPLAIN`, `VACUUM`, and `REPLACE` statements (plus many more).  Basically, if your SQL statement does not begin with `SELECT`, it is an update statement.
 
-Executing updates returns a single value, a `BOOL`.  A return value of `YES` means the update was successfully executed, and a return value of `NO` means that some error was encountered.  If you use the `-[FMDatabase executeUpdate:error:withArgumentsInArray:orVAList:]` method to execute an update, you may supply an `NSError **` that will be filled in if execution fails.  Otherwise you may invoke the `-lastErrorMessage` and `-lastErrorCode` methods to retrieve more information.
+Executing updates returns a single value, a `BOOL`.  A return value of `YES` means the update was successfully executed, and a return value of `NO` means that some error was encountered.  You may invoke the `-lastErrorMessage` and `-lastErrorCode` methods to retrieve more information.
 
 ### Executing Queries