Update README.md

Author: arsakarme

README.md

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 # MySQL Database Synchronizer
-MySQL Database Synchronizer is a library that aids the synchronization of two MySQL databases. Selected attributes of selected tables can by synchronized between the server and the client MySQL database in real-time or as a one-off instance.
+MySQL Database Synchronizer is a library that aids the synchronization of two MySQL databases. Selected attributes of selected tables can by synchronized between the server and the client MySQL databases in both real-time and as a one-off instance.
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+This library also supports a custom database name mapping, i.e. database, table and attribute names of the records that are to be synchronized can be different in the server and the client databases. Also, which tables and which attributes within these tables are to be synchronized can also be decided, i.e. the entire database or an entire table need not be synchronized as a whole. This can be useful when only a part of the database requires synchronization.
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+This library uses 'timestamps' occuring in both the server and the client databases to decide which records have not yet been synchronized. Hence, all tables that need synchronization must have one attribute that records the servertime at the time of record entry.