I looked up the Ellipsis documentation at https://docs.python.org/dev/library/constants.html#Ellipsis which has the below text : 

> The same as .... Special value used mostly in conjunction with extended slicing syntax for user-defined container data types.

The three dots are marked with backtick and look like codeblock but on a light theme it looks like a CSS issue. The backtick contains the actual ellipsis value (...) but the . at the end makes it look like .... especially since I was also using custom dark theme for https://docs.python.org so I thought it was four dots instead of three dots.

Markdown text at https://github.com/python/cpython/blob/master/Doc/library/constants.rst

> The same as ``...``.  Special used mostly in conjunction with extended slicing syntax for user-defined container data types.

It's very trivial but I thought to add a report and I am fine with a won't fix for this. I thought to add a PR but English is not my first language and I don't know if it can worded better. I can change it to "The same as ... which is a special value used mostly in conjunction with extended slicing syntax for user-defined container data types." to avoid the misleading dot and feedback welcome.

Thanks