[Cin] I tried to improve in-tree documentation

Attachments:

• attachment.html (text/html — 290 bytes)
• 0001-Update-README-build-instructions.patch (text/x-patch — 819 bytes)
• 0002-Add-BUGS.patch (text/x-patch — 509 bytes)
• 0003-Add-DESCRIPTION.patch (text/x-patch — 954 bytes)