Change to an actual link in last blog post (#1070)

Seems like vuepress doesn't autoconvert them

Author: Hofer-Julian

blog/2023-09-19-nushell_0_85_0.md

@@ -172,6 +172,7 @@ a lot better when it comes to errors.
 In this release, [@dead10ck](https://github.com/dead10ck) made it possible to use Nushell in Termux
 ([#10013](https://github.com/nushell/nushell/pull/10013)) and fixed a bug on Android
 ([#10225](https://github.com/nushell/nushell/pull/10225)).
+
 ## Improved history isolation
 ::: warning Breaking change
 See a full overview of the [breaking changes](#breaking-changes)
@@ -182,7 +183,8 @@ However, the former implementation had the disadvantage that it also blocked acc
 It also didn't isolate hints.
 This is now fixed with [!10402](https://github.com/nushell/nushell/pull/10402) by [@Hofer-Julian](https://github.com/Hofer-Julian).
 Since this was merged shortly before the release, this feature isn't the default yet.
-The `file_format` has to be changed to `"sqlite"` and `isolation` has to be set to `true`: https://github.com/nushell/nushell/blob/39d93b536a02c95c263925a47b9e4c34587ce021/crates/nu-utils/src/sample_config/default_config.nu#L202.
+The `file_format` has to be changed to `"sqlite"` and `isolation` has to be set to `true`.
+You can find those in the [config file](https://github.com/nushell/nushell/blob/39d93b536a02c95c263925a47b9e4c34587ce021/crates/nu-utils/src/sample_config/default_config.nu#L202) under `$nu.config-path`.
 Please test this so we can fix problems before history isolation becomes the default.
 
 ## Enhancing the documentation