404 error when accessing "6.9 Controlling the Prompt" in the manual

[Adrian Fita]

I get 404 when I try to access "6.9 Controlling the Prompt" from the
manual, "HTML - with one web page per node" version.

I get the page not found error from the following pages:
- https://www.gnu.org/software/bash/manual/html_node/index.html#SEC_Contents
- 
https://www.gnu.org/software/bash/manual/html_node/Bourne-Shell-Variables.html#index-PS1
- 
https://www.gnu.org/software/bash/manual/html_node/Concept-Index.html#Concept-Index

May be more.

Thanks,
--
Fita Adrian