Markdown
Spacehall markdown formatting reference
Headings
To create a heading, add one to six #
symbols before your heading text. The number of #
you use will determine the hierarchy level and typeface size of the heading.
# A first-level heading
## A second-level heading
### A third-level heading
Styling text
You can indicate emphasis with bold, italic, strikethrough, subscript, or superscript text.
Bold
** **
or __ __
**This is bold text**
This is bold text
Italic
* *
or _ _
_This text is italicized_
This text is italicized
Strikethrough
~~ ~~
~~This was mistaken text~~
This was mistaken text
Bold and nested italic
** **
and _ _
**This text is _extremely_ important**
This text is extremely important
All bold and italic
*** ***
***All this text is important***
All this text is important
Quoting text
You can quote text with a >
.
Text that is not a quote
> Text that is a quote
Quoted text is indented.
Quoting code
You can call out code or a command within a sentence with single backticks. The text within the backticks will not be formatted.
Use `cat file.txt` to output the content of the text file.
To format code into its own distinct block, use triple backticks.
Print a text string:
```
print("Hello World!")
```
Spacehall will try to infer the programming language from the block's content.
You can also set it manually by adding the language name after the first backticks.
Print a text string:
```rust
println!("Hello World!")
```
Links
You can create an inline link by wrapping link text in brackets [ ]
, and then wrapping the URL in parentheses ( )
.
This discussion is hosted on [Spacehall](https://spacehall.app).
Valid URLs are automatically transformed as links.
Images
You can display an image by adding ! and wrapping the alt text in [ ].
Alt text is a short text equivalent of the information in the image.
Then, wrap the link for the image in parentheses ().

For more information on how to upload a picture to Spacehall, see Uploading assets.
Lists
You can make an unordered list by preceding one or more lines of text with -
, *
, or +
.
- George Washington
- John Adams
- Thomas Jefferson
To order your list, precede each line with a number.
1. James Madison
1. James Monroe
1. John Quincy Adams
Nested Lists
You can create a nested list by indenting one or more list items below another item.
1. First list item
- First nested list item
- Second nested list item
Task lists
You can create a task list by preceding one or more line with - [ ]
for new tasks, and - [x]
for completed tasks.
- [x] buy bread
- [ ] buy cheese
- [ ] buy ham
Uploading assets
You can upload assets like images by using the file uploader.
Supported assets
images
Format
jpeg, png, svg, gif, webp
Maximum size
10 MB
Maximum dimension
12,000 px
Maximum resolution
100 megapixels (ex: 10,000x10,000)
Maximum metadata size
1024 bytes
Animated GIFs
Limited to 50 mp
Paragraphs
You can create a new paragraph by leaving a blank line between lines of text.
Footnotes
You can add footnotes to your content by using this bracket syntax:
Here is a simple footnote[^1].
A footnote can also have multiple lines[^2].
[^1]: My reference.
[^2]: To add line breaks within a footnote, prefix new lines with 2 spaces.
This is a second line.
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