Updates README

Author: aserebryakov

README.md

@@ -1,2 +1,12 @@
 # vim-todo-lists
-Vim plugin for TODO lists
+
+Vim plugin for TODO lists creation and management.
+
+## Motivation
+
+Create a simple in-editor tool for handling TODO lists that will have the
+following features:
+
+* Easy create/updated/delete operations on TODO items
+* Easy navigation between TODO items
+* Easy TODO lists management (e.g. create new list and archive an old one)