Update README.rst to specify secure protocols where possible Change git clone commands to specify https instead of git or http. GitHub has removed support for the git protocol (https://github.blog/changelog/2022-03-15-removed-unencrypted-git-protocol-and-certain-ssh-keys/) and http accesses will normally redirect to https. Update links to use https where possible: all the sites with updated links automatically redirect http accesses to https. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Link: https://lore.kernel.org/r/20220711025547.11917-1-rebecca@bsdio.com [axboe: fix git.kernel.dk location] Signed-off-by: Jens Axboe <axboe@kernel.dk>