[ruby/cgi] doc: fix method name
there was probably a copy paste mistake in the example of unescapeURIComponent (copied from unescape)
https://github.com/ruby/cgi/commit/f8fb627e90
[ruby/cgi] doc: fix method name
there was probably a copy paste mistake in the example of unescapeURIComponent (copied from unescape)
https://github.com/ruby/cgi/commit/f8fb627e90