feature: added addComment feature

addComment.js

@@ -0,0 +1,21 @@
+require('dotenv').config();
+const { owner, repo } = require('./constants');
+const { octokitConfig, octokitAuth } = require('./octokitConfig');
+const octokit = require('@octokit/rest')(octokitConfig);
+
+octokit.authenticate(octokitAuth);
+
+const addComment = (number, comment) => {
+  setTimeout(async () => {
+    octokit.issues.createComment({ owner, repo, number, body: comment })
+    .then(() => {
+      console.log(`PR #${number} successfully added a comment\n`);
+    })
+    .catch((err) => {
+      console.log(`PR #${number} had an error when trying to add a comment\n`);
+      console.log(err)
+    })
+  }, 1000);  // wait one second to comment for API rate limiting compliance
+};
+
+exports.addComment = addComment;