Change CEGUI_SAMPLE_DATAFILES to CEGUI_SAMPLE_DATAPATH in README.md
Change CEGUI_SAMPLE_DATAFILES to CEGUI_SAMPLE_DATAPATH in README.md

No idea why I wrote the wrong environment variable there in the first place...

--HG--
branch : v0-8

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two