Merge pull request #4 from Mitanshu21/pwa

pwa

Merge pull request #3 from Mitanshu21/readme

Update README.md

Merge pull request #1 from Mitanshu21/dependabot/npm_and_yarn/node-forge-1.3.1

Merge pull request #2 from Mitanshu21/dependabot/npm_and_yarn/minimist-1.2.6

Bump minimist from 1.2.5 to 1.2.6

Bump node-forge from 1.2.1 to 1.3.1

added validation in user input

setanswer removed

change prefix function edited

extra feature added

buttons edited

gh pages added

app completed