[DOC] Broken link at https://docs.ruby-lang.org/en/master/Net/HTTP.html#attribute-i-extra_chain_cert

[BurdetteLamar]

At https://docs.ruby-lang.org/en/master/Net/HTTP.html#attribute-i-extra_chain_cert, the link whose text is OpenSSL::SSL::SSLContext#add_certificate is broken.