Add a security related section to the best packaging practices section
Closes: #337086.
From the reply I am about to add to the BTS:
It seems like the mentioned link[1] is not working anymore, and looking around a bit it seems to be at [2] now instead.
I was thinking about the right place to add the link to. Even if there are some sections related to security, namely Security uploads and Handling security-related bugs, they are only tangentially related to the contents for the linked resource.
Hence, instead of adding it to an existing section, I have created a new one inside the Best Packaging Practices section. This could also be useful if more information about security, or other links are wanted to be added in the future.
1: http://www.debian.org/doc/manuals/securing-debian-howto/ch9.en.html
2: https://www.debian.org/doc/manuals/securing-debian-manual/ch09.en.html