Instructions for embedding Google-Sheet-based schedules in the schedule page

We have a Google Sheet with multiple tabs that has the event schedules. These schedules are embedded in a website page. This year (OHW23), it'll be this page alone: https://oceanhackweek.org/ohw23/schedule.html

The individual tabs that will be embedded first needs to be "published to the web" before it can be embedded. In the Google Sheet, go to File > Share > Publish to Web. This pop up will appear:

Click Embed, then select the tab that you want to publish. Then click Publish and copy the text block that's shown. This block is a url enclosed in an HTML <iframe> tag:

That block is then posted as is into the Markdown page:
https://github.com/oceanhackweek/oceanhackweek.github.io/blob/c5ce42d9f8de03fbf1175bc2c141182920af0c52/ohw23/schedule.md?plain=1#L7-L13

I've already done this for OHW23 (PR #272)! So, we probably won't need to do it again, unless we add an Australia schedule.

Đọc dòng 7-13 trong ohw23/schedule.md và các bước phát hành trên Google Sheets được mô tả trong issue, sau đó kiểm tra các OHW23 embeds hiện có trong PR #272. Công việc được coi là hoàn tất khi mọi tab Schedule mới được yêu cầu, chẳng hạn như Australia schedule, được phát hành và iframe của tab đó được thêm vào trang Markdown liên quan.