man/ruby.1: add trailing slash to URLs [ci-skip]

URLs without path component needs trailing slash.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47379 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
man/ruby.1: spelling fix ("bellow" => "below") [ci-skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-09-04

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47381 b2dd03c8-39d4-4d8f-98ff-823fe69b080e