Add additional documentation to code/tests

1 job for 4-start-anew in 14 seconds (queued for 1 second)
Status Name Job ID Coverage
failed test_lib-ical #1658


Name Stage Failure
test_lib-ical Test There is an unknown failure, please try again
      at Parameter.set paramValues [as paramValues] (src/Parameter.ts:94:19)
at new Parameter (src/Parameter.ts:37:25)
at (test/Parameter.spec.ts:55:46)

npm info lifecycle lib-ics@0.0.1~test: Failed to exec test script
npm ERR! Test failed. See above for more details.
ERROR: Build failed: exit code 1