renaming: skin/100-lines.html -> md-pages/100-lines.html; skin/core.html -> md-pages/core.html; skin/documentation.html -> md-pages/documentation.html; skin/index-new.html -> md-pages/index-new.html; skin/index.html -> md-pages/index.html; skin/industrial.html -> md-pages/industrial.html; skin/platform.html -> md-pages/platform.html; skin/what.html -> md-pages/what.html