add *.swp to .gitignore

1 job from master in 1 minute 1 second (queued for 2 seconds)
Status Job ID Name Coverage
  Deploy
failed #32966
pages

01:01

 
Name Stage Failure
failed
pages Deploy
npm ERR! eterlanding@1.0.0 lint: `npx eslint src/js/*.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the eterlanding@1.0.0 lint script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/kantegory/.npm/_logs/2020-03-19T11_33_26_045Z-debug.log
ERROR: Job failed: exit status 1