Fix references to renamed range command

Since nu 0.102.0, the range command has been renamed to slice. Two pages
in the book still referenced the old command name (with corresponding
broken hyperlinks).

Author: nome

book/navigating_structured_data.md

@@ -344,4 +344,4 @@ $with_default_value.1.a
 ## Other commands for accessing structured data
 
 - [`reject`](/commands/docs/reject.md) is the opposite of `select`, removing the specified rows and columns
-- [`range`](/commands/docs/range.md) specifies the rows of a list or table to select using a [`range`](./types_of_data.md#ranges) type
+- [`slice`](/commands/docs/slice.md) specifies the rows of a list or table to select using a [`range`](./types_of_data.md#ranges) type

book/nushell_map.md

@@ -37,8 +37,7 @@ The idea behind this table is to help you understand how Nu builtins and plugins
 | [`transpose`](/commands/docs/transpose.md)                 | `pivot`                       |                                                      |                                            |                                                 |
 | [`ps`](/commands/docs/ps.md)                               |                               |                                                      | `Get-Process`, `ps`, `gps`                 | `ps`                                            |
 | [`pwd`](/commands/docs/pwd.md)                             |                               |                                                      | `Get-Location`, `pwd`                      | `pwd`                                           |
-| [`range` (command)](/commands/docs/range.md)               | `limit x offset y`, `rownumber` | `ElementAt`                                        | `[x]`, indexing operator, `ElementAt`      |                                                 |
-| [`range` (type)](types_of_data.html#ranges)                |                               | `Range`                                              | `1..10`, `'a'..'f'`                        |                                                 |
+| [`range`](types_of_data.html#ranges)                       |                               | `Range`                                              | `1..10`, `'a'..'f'`                        |                                                 |
 | [`reduce`](/commands/docs/reduce.md)                       |                               | `Aggregate`                                          |                                            |                                                 |
 | [`rename`](/commands/docs/rename.md)                       |                               |                                                      | `Rename-Item`, `ren`, `rni`                | `mv`                                            |
 | [`reverse`](/commands/docs/reverse.md)                     |                               | `Reverse`                                            | `[Array]::Reverse($var)`                   |                                                 |
@@ -49,6 +48,7 @@ The idea behind this table is to help you understand how Nu builtins and plugins
 | [`skip`](/commands/docs/skip.md)                           | `where row_number()`          | `Skip`                                               | `Select-Object -Skip`                      |                                                 |
 | [`skip until`](/commands/docs/skip_until.md)               |                               | `SkipWhile`                                          |                                            |                                                 |
 | [`skip while`](/commands/docs/skip_while.md)               |                               | `SkipWhile`                                          |                                            |                                                 |
+| [`slice`](/commands/docs/slice.md)                         | `limit x offset y`, `rownumber` | `ElementAt`                                        | `[x]`, indexing operator, `ElementAt`      |                                                 |
 | [`sort-by`](/commands/docs/sort-by.md)                     | `order by`                    | `OrderBy`, `OrderByDescending`, `ThenBy`, `ThenByDescending` | `Sort-Object`, `sort`              | `sort`                                          |
 | [`str`](/commands/docs/str.md)                             | String functions              | `String` class                                       | `String` class                             |                                                 |
 | [`str join`](/commands/docs/str_join.md)                   | `concat_ws`                   | `Join`                                               | `Join-String`                              |                                                 |