Tiny typo fixes in 2023-05-16-nushell_0_80.md (#910)

Some missing "`"s

Author: daniel-vainsencher

blog/2023-05-16-nushell_0_80.md

@@ -32,7 +32,7 @@ Starting with this release, you can add more information about the type of a rec
 def okay [person: record<name: string age: int>] {}
 ```
 
-The above will require two fields to be present, a `name` that's a `string, and an `age`that's an`int`. The current version requires that the record has exactly these fields, though we may loosen this in future releases to allow for structural subtyping.
+The above will require two fields to be present, a `name` that's a `string`, and an `age` that's an `int`. The current version requires that the record has exactly these fields, though we may loosen this in future releases to allow for structural subtyping.
 
 ## Modules from directories ([@Kubouch](https://github.com/nushell/nushell/pull/9066))
 
@@ -57,7 +57,7 @@ The enabling feature for module directories was organizing modules into submodul
 | c422c6cc3 | Fix completion on `$nu` to show correct menus              | [#8919](https://github.com/nushell/nushell/pull/8919) |
 | 44493dac5 | Add extern def which allows raw arguments                  | [#8956](https://github.com/nushell/nushell/pull/8956) |
 | fb10e1dfc | add `--ide-ast` for a simplistic ast for editors           | [#8995](https://github.com/nushell/nushell/pull/8995) |
-| 4ca47258a | Add --redirect-combine option to run-external              | [#8918](https://github.com/nushell/nushell/pull/8918) |
+| 4ca47258a | Add `--redirect-combine` option to run-external            | [#8918](https://github.com/nushell/nushell/pull/8918) |
 | e590d3587 | enable history isolation                                   | [#9063](https://github.com/nushell/nushell/pull/9063) |
 | d45e9671d | Suggest existing variables on not found                    | [#8902](https://github.com/nushell/nushell/pull/8902) |
 | a7c1b363e | Don't run .sh files with /bin/sh                           | [#8951](https://github.com/nushell/nushell/pull/8951) |