Request more `info` to be provided by MirrorS

[ZenithalHourlyRate]

With f35db90, popular ISOs and APPs can be downloaded in https://mirrorz.org without browsing detailed directories of MirrorSes. However, only a few MirroSes have provided their info. Hence more maintainance is requested.

Below are a few possible directions

• info. Some MirrorS does not have the tool to provide the info needed.
• cname. For example, USTC provided ArchLinux while TUNA MirrorSes provided Arch Linux
• frontend. A modern and/or best-practive frontend is wanted.

[ZenithalHourlyRate]

site.logo is now used by frontend, hence one MirrorS may provide their logo in their meta.