Fix CODEOWNERS patterns.
# Github code owners
# See https://github.com/blog/2392-introducing-code-owners
-cli/compose/* @dnephin @vdemeester
-contrib/completion/bash/* @albers
-contrib/completion/zsh/* @sdurrheimer
-docs/* @mstanleyjones @vdemeester @thaJeztah
-scripts/* @dnephin
+cli/compose/** @dnephin @vdemeester
+contrib/completion/bash/** @albers
+contrib/completion/zsh/** @sdurrheimer
+docs/** @mstanleyjones @vdemeester @thaJeztah
+scripts/** @dnephin
