Fixes small formatting bug in README
Fixes small formatting bug in README

There were only two backticks in the markdown, which showed in the file instead of closing the code block.
IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest,IEEE-NITK/HacktoberFest