add index.html file for the tools dir
add index.html file for the tools dir

geopicardie/geopicardie-simple-web-apps,geopicardie/geopicardie-simple-web-apps,geopicardie/geopicardie-simple-web-apps,geopicardie/geopicardie-simple-web-apps,geopicardie/geopicardie-simple-web-apps