add link to demos in main layout
add link to demos in main layout

tomkralidis/pycsw,kevinpdavies/pycsw,bukun/pycsw,ingenieroariel/pycsw,tomkralidis/pycsw,kalxas/pycsw,PublicaMundi/pycsw,geopython/pycsw,PublicaMundi/pycsw,rouault/pycsw,ckan-fcd/pycsw-fcd,benhowell/pycsw,ocefpaf/pycsw,tomkralidis/pycsw,benhowell/pycsw,geopython/pycsw,ocefpaf/pycsw,mwengren/pycsw,mwengren/pycsw,geopython/pycsw,ingenieroariel/pycsw,bukun/pycsw,kalxas/pycsw,rouault/pycsw,ricardogsilva/pycsw,ricardogsilva/pycsw,ricardogsilva/pycsw,bukun/pycsw,kevinpdavies/pycsw,ckan-fcd/pycsw-fcd,kalxas/pycsw