use GitHub context to branch processing (#22)

src/pr.ts

@@ -0,0 +1,19 @@
+import axios, {AxiosResponse} from 'axios'
+
+export async function createComment(
+  token: string,
+  owner: string,
+  repo: string,
+  prNumber: number,
+  body: string
+): Promise<AxiosResponse> {
+  const instance = axios.create({
+    baseURL: 'https://api.github.com',
+    headers: {
+      Authorization: `token ${token}`
+    }
+  })
+  return instance.post(`/repos/${owner}/${repo}/issues/${prNumber}/comments`, {
+    body
+  })
+}