Draft Security Policy update (still needs some work)

I fixed some things on the Security Policy here is the revised version:

# ToS;DR Security Policy

* [Reporting a Vulnerability](#Reporting-a-Vulnerability)
* [Security Announcements](#Security-Announcements)
* [Acknowledgements](#Acknowledgements)

### Reporting a Vulnerability

If you think you've identified a security issue in any ToS;DR Project, please **do not** report the issue publicly via a mailing list, IRC, a public issue on our issue trackers, a merge request, or any other public venue.

Instead, report a Security Vulnerability via email to <security@tosdr.org>. Please include as many details as possible, including a minimal reproducible example of the issue, and an idea of how exploitable/severe you think it is.

**Do not** provide a merge request to fix the issue, as there is currently no way to make confidential merge requests on [GitHub](https://github.com).

If you have patches which fix the security issue, please attach them to your security vulnerability report as patch files.

Security vulnerability reports are only visible to the reporter and the ToS;DR Staff.

The next steps are then:

* The report is triaged.
* Code is audited to find any potential similar problems.
* The fix is prepared for the most recent stable branch.
* The fix is submitted to the public repository.
* On the day the issue and fix are made public, an announcement is made on the [public channels listed below](#Security-Announcements).
* The fix will be deployed into production.

### Security Announcements

Security announcements are made publicly via the [Confluence Docs](https://tosdrconfluence.atlassian.net/wiki/label/NEWS/security).

### Acknowledgements

This text was partially based on the  
[github.com/containers security policy](https://github.com/containers/common/blob/master/SECURITY.md),  
[flatpak security policy](https://github.com/flatpak/flatpak/blob/master/SECURITY.md),  
[gnome security policy](https://gitlab.gnome.org/GNOME/glib/-/blob/master/SECURITY.md).

I don’t know if the section that says “The next steps are then:” is correct so I need a staff member to confirm

Bumping, in case people missed this. Please give me your feedback.