Changes

|#1: https://github.com/mayukh18/BlindChat/issues/7 <br> #2: https://github.com/cdnjs/new-website/issues/277<br> #3: https://github.com/nodejs/node/issues/30068|#1: https://github.com/mayukh18/BlindChat/pull/39 <br> #2: https://github.com/cdnjs/new-website/pull/304<br> #3: https://github.com/nodejs/node/pull/30069|#1: https://minukpark.wordpress.com/2019/10/05/hacktoberfest-2019-pr-1/ <br> #2: https://minukpark.wordpress.com/2019/10/14/hacktoberfest-2019-pr-2/ <br> #3: https://minukpark.wordpress.com/2019/10/24/hacktoberfest-2019-pr-3/