How to get document for project

[TomGarden]

I select boost 1.80.0

Boost page link is not work , I got three doc link form boost. date_time_document page

1. http://www.crystalclearsoftware.com/libraries/date_time/date_time.pdf
2. http://www.crystalclearsoftware.com/libraries/date_time/ref_guide/index.html
3. http://www.crystalclearsoftware.com/libraries/date_time/index.html

but they are can't access .

On project , I found bjam --v2 date_time_doc

1. on date_time project execuate the command failed
2. on boost project another command ./b2 --v2 date_time_doc not got document

I whant get boost.date_time subproject document , class method note... will any one try help me ?