readme: adding list of technologies used in frontend

2 jobs for <span class="ref-name">dev-177-DoorWelcome</span>
Status Job ID Name Coverage
  Test
failed #5972
deps

failed #5973
test

 
Name Stage Failure
failed
test Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job trace
failed
deps Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job trace