Most companies don't give a shit whether you know ASL or not. They are looking for someone who HAVE experience with previous job that fits their needs. That's what resume is for. OP is applying for IT job and he should be putting something he have experience or knowledge of IT stuffs.
For more depth information should hold till interview.
Today's job applying process is much different, they weed out any less experience applicants and invites applicants that have closest or matched experience they needed to job interview.