It is really easy and yes only two bolts hold the capilper to the rotor.I belive they are 18mm bolts but the bolts could be 19mm. The rotor is self is held on to the hub by one 6mm hex bolt, be carefull not to strip the 6mm hex bolt because you will be in trouble. I recomend to replace them every time you replace rotors. The rotors might be stuck to hub because of rust but a few blows with a mallet should remove the rotors. Clean off the Hub and aply anti-seize to preven rust and the rotors from getting stuck.
That should be it, just re assemble everything back and you will be done.