[pkg-netfilter-team] Bug#887718: mention "nftables" in the the NAME or DESCRIPTION

[積丹尼 Dan Jacobson]

Package: nftables
Version: 0.8.1-1
Severity: wishlist
File: /usr/share/man/man8/nft.8.gz

The man page should mention the word "nftables" earlier.
Currently one must read down 100 lines before it is even mentioned.
You might want to make the connection between "nft" and "nftables" as
early as the NAME or DESCRIPTION.

Also mention what the NF stands for.