Documentation: update description of link-pois-to-ways in the web version of the mkgmap options

git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@2923 25d90789-57f7-4ee0-8453-03a3dfeeeb22
Documentation: add mkgmap tags set by the process-exits and process-destination options

git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@2924 25d90789-57f7-4ee0-8453-03a3dfeeeb22
Documentation: update description of the housenumbers option

git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@2925 25d90789-57f7-4ee0-8453-03a3dfeeeb22
Documentation: fix formatting of the web version of the mkgmap option help

git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@2926 25d90789-57f7-4ee0-8453-03a3dfeeeb22