changes in the contributing.md
changes in the contributing.md

chennakeshava1998/ieee-nitk.github.io,vilas897/ieee-nitk.github.io,chennakeshava1998/ieee-nitk.github.io,IEEE-NITK/ieee-nitk.github.io,IEEE-NITK/ieee-nitk.github.io,IEEE-NITK/ieee-nitk.github.io,IEEE-NITK/ieee-nitk.github.io,chennakeshava1998/ieee-nitk.github.io,IEEE-NITK/ieee-nitk.github.io,vilas897/ieee-nitk.github.io,vilas897/ieee-nitk.github.io,vilas897/ieee-nitk.github.io,chennakeshava1998/ieee-nitk.github.io