add ToDo file

Author: co0lc0der

README.md

@@ -90,7 +90,6 @@ I'm going to add the next features into future versions
 - add `BETWEEN`
 - add `WHERE EXISTS`
 - add TableBuilder class (for beginning `CREATE TABLE`, move `$query->drop()` and `$query->truncate()` into it)
-- add MySQL support
 - add PostgreSQL support
 - add `WITH`
 - and probably something more

ToDo.md

@@ -0,0 +1,10 @@
+# ToDo
+I'm going to add the next features into future versions
+- write more unit testes
+- add subqueries for QueryBuilder
+- add `BETWEEN`
+- add `WHERE EXISTS`
+- add TableBuilder class (for beginning `CREATE TABLE`, move `$query->drop()` and `$query->truncate()` into it)
+- add PostgreSQL support
+- add `WITH`
+- and probably something more