Clean the area with 99% alcohol & a piece of cloth
1) cut some round patches of same color spinnaker ( available at any kite shop ) or
2) some patches of tear-aid type A ( same used to repair bladders ) or
3) apply a few drops of urethane glue ( you can get it at www.kitefix.com
1+2 press hard or if going with nr, 3 , leave it dry for 24 hrs
And you are ready to go riding
If the hole(s) are thru the material , apply the patches or the glue from both sides
( but remember to clean the other side too with alcohol ...