"Enter Grade" should be a button like "Upload Annotated file"

[tssheth]

Or vice versa.

But I prefer buttons in this case.

(See jazkarta#18)

[pdpinch]

We'll have to update the screen shots in the documentation after this change is made as well.

[amir-qayyum-khan]

I have added style to "a tag" to make it look like button (Image is attached). I am not able to replace "a tag" with input button. Because "a tag" is bind with leanModal when i tried to bind it with input button it didnt work.

[pdpinch]

fixed via #68