/usr/share/doc/ is in instead-doc-common 3.1.2-2.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/instead/
/usr/share/doc/instead/manual/
/usr/share/doc/instead/manual/examples/
/usr/share/doc/instead/manual/examples/sfxr.lua
/usr/share/doc/instead/manual/examples/stead2/
/usr/share/doc/instead/manual/examples/stead2/cutscene.lua
/usr/share/doc/instead/manual/examples/stead2/dialog/
/usr/share/doc/instead/manual/examples/stead2/dialog/main.lua
/usr/share/doc/instead/manual/examples/stead2/fonts.lua
/usr/share/doc/instead/manual/examples/stead2/keyboard/
/usr/share/doc/instead/manual/examples/stead2/keyboard/keyboard.lua
/usr/share/doc/instead/manual/examples/stead2/keyboard/main.lua
/usr/share/doc/instead/manual/examples/stead2/menu-demo/
/usr/share/doc/instead/manual/examples/stead2/menu-demo/main.lua
/usr/share/doc/instead/manual/examples/stead2/trigger.lua
/usr/share/doc/instead/manual/examples/stead3/
/usr/share/doc/instead/manual/examples/stead3/dialog/
/usr/share/doc/instead/manual/examples/stead3/dialog/main3.lua
/usr/share/doc/instead/manual/examples/webinst.lua
/usr/share/doc/instead-doc-common/
/usr/share/doc/instead-doc-common/changelog.Debian.gz
/usr/share/doc/instead-doc-common/copyright
/usr/share/doc-base/instead-doc-common