Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://github.com/github/docs/blob/main/content/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax.md#footnotes

What part(s) of the article would you like to see updated?

The Footnotes section provides incorrect instructions for multiline footnotes. The section reads:

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.

Using this syntax, GitHub markdown renders what should be the second line at the end of the first line. The correct form of the syntax is to place two spaces at the end of a line that prefixes a new line:

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, add 2 spaces to the end of a line. 
This is a second line.

Updating this content will allow people to use the GitHub Getting Started documentation to successfully implement multiline footnotes within markdown files.

Additional information

I can reliably reproduce and resolve the problem with *.md pages rendered on GitHub.com. Prefixing additional lines of a footnote with 2 spaces does not produce a multiline footnote; adding 2 spaces to the end of lines that prefix additional lines of a footnote correctly produces a multiline footnote. Curiously, both placements of 2 spaces work correctly in other GitHub elements that support markdown (Issue and Pull Request descriptions, comments, etc.).