docs: Document the new autoHeadingIDType setting

See #6707
See #6616

diff --git a/docs/content/en/getting-started/configuration-markup.md b/docs/content/en/getting-started/configuration-markup.md
index 1ac7e44ea2fb358c46b6b6f04ee01f046e60ea57..a0791ee6e737f5629c40a368b66a5283424f59de 100644 (file)
--- a/docs/content/en/getting-started/configuration-markup.md
+++ b/docs/content/en/getting-started/configuration-markup.md
@@ -38,6 +38,9 @@ unsafe
 typographer
 : This extension substitutes punctuations with typographic entities like [smartypants](https://daringfireball.net/projects/smartypants/).
 
+autoHeadingIDType ("github") {{< new-in "0.62.2" >}}
+: The strategy used for creating auto IDs (anchor names). Available types are `github`, `github-ascii` and `blackfriday`. `github` produces GitHub-compatible IDs, `github-ascii` will drop any non-Ascii characters after accent normalization, and `blackfriday` will make the IDs work as with [Blackfriday](#blackfriday), the default Markdown engine before Hugo 0.60. Note that if Goldmark is your default Markdown engine, this is also the strategy used in the [anchorize](/functions/anchorize/) template func.
+
 ### Blackfriday