docs: use HTTPS link to bit.ly/chrome-flags (#6692)
docs: use HTTPS link to bit.ly/chrome-flags (#6692)


wardpeet/lighthouse,GoogleChrome/lighthouse,ev1stensberg/lighthouse,deepanjanroy/lighthouse,ev1stensberg/lighthouse,GoogleChrome/lighthouse,GoogleChrome/lighthouse,ev1stensberg/lighthouse,umaar/lighthouse,umaar/lighthouse,GoogleChrome/lighthouse,deepanjanroy/lighthouse,umaar/lighthouse,GoogleChrome/lighthouse,deepanjanroy/lighthouse,deepanjanroy/lighthouse,wardpeet/lighthouse,wardpeet/lighthouse,wardpeet/lighthouse,deepanjanroy/lighthouse,umaar/lighthouse,wardpeet/lighthouse,ev1stensberg/lighthouse