Add links to the tenure reports of Academic Society

[Strikerzee]

With the closure of this academic year 2020-2021 and the secretaries signing, please add the tenure reports of the academic years 2019-20 and 2020-21 on the Senate.html page

For displaying this, you can create a drop down labelled "View Tenure Reports" - which when clicked, expands to the following:

1. Academic Year 2019-2020 (Anand Ramrakhyani)

2. Academic Year 2020-2021 (Arnav Prasad)