add readme

+# Requirements
+
+| Name |Version |
+| ------ | ------ |
+| firefox | 100.0.2 |
+| nodejs | 16.15.0 |
+| npm | 8.10.0 |
+| geckodriver | 0.31.0-linux64 |
+
+# Installation
+
+```sh
+$ wget -c https://github.com/mozilla/geckodriver/releases/download/v0.26.0/geckodriver-v0.26.0-linux64.tar.gz -O - | tar -xz
+$ npm install
+```
+
+and add setting.json for channel access
+
+```json
+{
+    "channel_access": "<Channel Access Token>",
+    "domain": "<Domain>",
+    "id": "<ECampus ID>",
+    "pw": "<ECampus PW>"
+}
+```
\ No newline at end of file