# Exercise 7: File Structure (Markdown)

In this exercise you will learn how to structure your chapters.

::::::{topic} Exercise objective
Can you structure your page with a title and (sub)sections?
::::::

```{tip}

More useful Markdown syntax is explained in the [MyST cheat sheet](https://jupyterbook.org/en/stable/reference/cheatsheet.html).

```

1. Let's add a new file by going to a directory of your choice within `/book` and make sure you're in the correct branch.. When you've arrived there, click `Add file` - {octicon}`plus;1em` `Create new file`.

2. Name your file and end it with the file extension `.md` (e.g. `my_new_file.md`), your filename preferable shouldn't include spaces.

3. Now let's create the structure of your chapter. You need to start with a title on the top of this page. The title is always defined in one of the first lines of the file after the hashtag `#`. So your file should look like:

```md
# Chapter title

```

4. Now let's add some more text and subsections as needed. You're only allowed to use one chapter title `#`, but there's no limit for the amount of sections, subsections, etc:

```md
# Chapter Title 
text

## Section Title 1
text

## Section Title 2
text

### Subsection Title 1
text

### Subsection Title 2
text

#### Heading 
##### Smaller Heading
###### Smallest Heading
```

5. When you are ready, commit your changes to the repository by clicking on the green `Commit changes` button.

6. Add a commit message.

7. Now let's add your new file tot the table of contents, as explained in [](../exercises/002.md).

8. To see you changes, go to {octicon}`play;1em` `Actions` - The most recent workflow run `overview.md / the commit message of the commit you just made` - Wait for it to finish - In the summary, click on the link of your book shown in the table `Branches deployed` and under `Primary book at root` (getting bored of waiting? Soon, there'll be exercising on doing this locally which prevents you from waiting).

9. Do you see your change? If you don't see it click `CTRL`+`F5`/`Control`+`F5`to refresh the page.

```{admonition} Check your understanding
:class: note

Before moving on to the next exercise, make sure you understand the following:
- What is the correct way to define a title in a Markdown file?
- How many chapter titles (`#`) are allowed in a single Markdown file?
- What file type are you using?
```