interfaces: add some basic docs to check they work
interfaces: add some basic docs to check they work

lcp/libsocialweb,GNOME/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth,ThomasBollmeier/libsocialweb-flickr-oauth,GNOME/libsocialweb,GNOME/libsocialweb,lcp/libsocialweb,lcp/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth