Add the tasks feature

[vanishasamriddhi]

By task feature I meant that we can add a page on which user can add the tasks or To-Do questions that he/she can practice later. After completion of those tasks he or she can just tick that task or cut that task from the page.

[123mansha]

go for it @vanishasamriddhi

[vanishasamriddhi]

I'm from DevIncept do add the tags.