Updated docs for DB class

Author: hamzaavvan

README.md

@@ -1,2 +1,17 @@
 # PHP-Library
 Some useful php libraries for easing code :)
+
+## Working with DB (PDO)
+
+### Instantiating Object and setting table
+
+```php
+$db = new DB();
+$db->table('tablename');
+
+``
+## OR Do it directly (DID)
+```php
+// Fetching results
+DB::table('tablename')->get(); // will fetch every result from table
+```