huntr.dev has pivoted to ML/AI-only vulnerability reporting, and we are
now already using GitHub's private vulnerability reports.

Fixes #11683
Related: 50c67868

BREAKING CHANGE: The alias `gup` for `git pull --rebase` and its derivatives
are replaced by `gpr` for standardization. This means the previous aliases will
no longer be available after a few months. Meanwhile, the original aliases are
still working, with a deprecation notice.
See https://github.com/ohmyzsh/ohmyzsh/blob/master/plugins/git/README.md#deprecated-aliases
for the full list of deprecated aliases.

Fixes #11104
Closes #11224
Co-authored-by: Marc Cornellà <marc@mcornella.com>

Fixes #11151

Closes #11993

Closes #11829 
Co-authored-by: Carlo Sala <carlosalag@protonmail.com>

Co-authored-by: Carlo Sala <carlosalag@protonmail.com>

Fixes #10871

Co-authored-by: Steve Lessard <slessardjr@users.noreply.github.com>

Fixes #11959

Co-authored-by: Marc Cornellà <hello@mcornella.com>

Currently the macOS runner is not needed, as we are only checking
zsh syntax. We can reactivate it in the future if needed.

Fixes #10384

Co-authored-by: jxlwqq <jxlwqq@gmail.com>
Co-authored-by: Francesco Ilario <fr.ilario@gmail.com>
Co-authored-by: Marc Cornellà <hello@mcornella.com>

NOTE: this feature is in alpha / preview mode, it is not guaranteed to work 100% of the
time in all cases. If you experience any issues, open an issue or search for an open
one describing your same situation.

To use this, use the zstyle update mode settings [1] with the value `background-alpha`:

  zstyle ':omz:update' mode background-alpha

[1] https://github.com/ohmyzsh/ohmyzsh#getting-updates

* add readme.md for rtx
* add rtx plugin
* update install info
* remove redundant slashes