better table print, order by/offset/limit improvements

Readme.md

@@ -1,11 +1,16 @@
 
 ### TODO
-- support for order by, offset, limit
+- support for distinct
+- command line interface
+- better table print
+- support for order by, offset, limit (allow column name in order by, validate)
+- add count min and max functions, eg aggregate functions
+- support for uniqueue indexes
 - support for btree indexes
 - support for parenthesis
+- functions rtrim, ltrim, rpad, lpad
 - support for *
 - add pipe | token
-- add count min and max functions, eg aggregate functions
 - maybe to create iterator on table
 - add exceptions and rename it to UsqlException
 - class members should have prefix m_