Here you are, you have just solved step A1.

The instructions for the next step (A2) follow this text,
but they are encoded in rot13.

At this stage, you should already be able, within just a few seconds, to
discover what rot13 is, and to find out an easy way to decode it.

Pbatenghyngvbaf, lbh unir znantrq gb qrpbqr gur ebg13 grkg.

Vs lbh ner vatravbhf, lbh fubhyq unir abgvprq gung gur jro vf shyy bs bayvar
rapbqre/qrpbqre sbe ebg13. Urapr, rdhvccrq jvgu n tbbq frnepu ratvar, lbh
unir rnfvyl sbhaq n fbyhgvba gb guvf fgrc; gung jnf vaqrrq gur cbvag bs
gur rkrepvfr. Rznpf hfref znl unir cersreerq gb hfr "Z-k ebg13-ertvba
ERG", ohg gung vf nabgure fgbel.

Jr abj yrnir RafvJvxv sbe Punzvyb. Punzvyb pna or npprffrq sebz gur
Rafvznt vagenarg (uggcf://vagenarg.rafvznt.se/). Tb gurer naq svaq gur
pbhefr "Rafvznt 3ZZHAVK Havk : vagebqhpgvba rg cebtenzzngvba furyy".  Bcra
gur gbby "Qbphzragf", lbh jvyy svaq n qbphzrag gung pbagnvaf fgrc N3 bs
gur uhag.