Added description of a single function in vertex.c

Samo Penic

2015-02-24 063f2e5464f1e0e7cc2766b2cd94b8ca8c242a3d

 src/triangle.h

@@ -6,5 +6,5 @@
ts_bool triangle_add_neighbour(ts_triangle *tria, ts_triangle *ntria);
ts_bool triangle_normal_vector(ts_triangle *tria);
ts_bool triangle_list_free(ts_triangle_list *tlist);

ts_bool triangle_remove_neighbour(ts_triangle *tria, ts_triangle *ntria);
#endif