DOC: improper doc syntax (markdown and imbalanced ticks). (#20944)

Here are two modifications:

The first one is the inclusion of markdown fence blocks in the middle of
RST. While this is not really a problem for current documentation as
this is a private function, it still makes other RST parser choke on
this.

In particular this is seen as a tile as it is a text line followed by
a line of only backticks, and that makes my new project to show better
docstrings in Jupyter fails.

I can locally exclude this function, but while not fix it to show good
examples ?

Second, while grepping for triple backticks I found that there are a
stray one in another place.

0 files changed, 0 insertions, 0 deletions