Added information about doing a clean build
Added information about doing a clean build

cebash/SDL_PSL1GHT,cebash/SDL_PSL1GHT,aduros/SDL,aduros/SDL,cebash/SDL_PSL1GHT,aduros/SDL,aduros/SDL,cebash/SDL_PSL1GHT,aduros/SDL,cebash/SDL_PSL1GHT