Ohkubo KOHEI

add configure doc for empty_example_group.rb

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based on v1 doc https://www.rubydoc.info/gems/rubocop-rspec/1.15.0/RuboCop/Cop/RSpec/EmptyExampleGroup and upgrade doc. https://github.com/rubocop/rubocop-rspec/blob/cd6a30efa9094e389cf9e4dd473b7631fe18bab1/docs/modules/ROOT/pages/upgrade_to_version_2.adoc#adjust-the-configuration-of-rspecemptyexamplegroup ______________________________________________________________________ Before submitting the PR make sure the following are checked: - [x] Feature branch is up-to-date with `master` (if not...

https://www.rfc-editor.org/rfc/rfc6901 > Because the characters '\~' (%x7E) and '/' (%x2F) have special meanings in JSON Pointer, '\~' needs to be encoded as '~0' and '/' needs to be encoded as...

Update grid.css fix typo

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--grid-column-width -> --grid-col-width