Read all documentation with a WWW browser. dhelp builds an index of all installed HTML documentation. You don't need a WWW server to read the documentation. dhelp offers a very fast search in the HTML documents.
You can access the online help system with the dhelp program or with your browser. The URL to point your browser at is (if you have a WWW server installed) http://localhost/doc/HTML/index.html , else (if you do not) file://localhost/usr/share/doc/HTML/index.html.