Add "Slicing with Ranges" rule

Follow up rubocop/rubocop#12594 (comment).

This PR adds "Slicing with Ranges" rule.

README.adoc

@@ -5273,6 +5273,50 @@ words.sub(/f/, 'f' => 'F') # => 'Foo bar'
 words.gsub(/\w+/) { |word| word.capitalize } # => 'Foo Bar'
 ----
 
+== Ranges
+
+=== Slicing with Range
+
+`[0..-1]` in `ary[0..-1]` is redundant and simply synonymous with `ary`.
+
+[source,ruby]
+----
+# bad
+ary[0..-1]
+ary[0..nil]
+ary[0...nil]
+
+# good
+ary
+----
+
+Ruby 2.6 introduced endless ranges.
+
+[source,ruby]
+----
+# bad
+ary[1..-1]
+ary[1..nil]
+
+# good
+ary[1..]
+----
+
+Ruby 2.7 introduced beginless ranges. But, unlike the somewhat obscure `-1` in `ary[1..-1]`, the `0` in `ary[0..42]` is clear
+as a starting point. In fact, changing it to `ary[..42]` could potentially make it less readable. Therefore, `ary[0..42]`
+should respect the original programmer's intent. On the other hand, `ary[nil..42]` could be replaced with `ary[..42]`.
+Similarly, `ary[1..nil]` could be replaced with `ary[1..]`.
+
+[source,ruby]
+----
+# bad
+ary[nil..42]
+
+# good
+ary[..42]
+ary[0..42]
+----
+
 == Percent Literals
 
 === `%q` shorthand [[percent-q-shorthand]]