docs: rename 'unreleased' section to latest tag

Signed-off-by: NotAShelf <[email protected]>
Change-Id: I6a6a6964c30776da3fc23f84fb8daa8033331f29

Author: NotAShelf

CHANGELOG.md

@@ -14,7 +14,7 @@ be put in the "Changed" section or, if it's just to remove code or
 functionality, under the "Removed" section.
 -->
 
-## Unreleased
+## 4.2.0
 
 ### Changed
 
@@ -50,8 +50,8 @@ functionality, under the "Removed" section.
   `run0` and a fallback `pkexec` strategies will be attempted if the system does
   not use `sudo`.
 - Nh will correctly prompt you for your `sudo` password while deploying
-  remotely. This helps mitigate the need to allow password-less `sudo` on
-  the target host to deploy remotely.
+  remotely. This helps mitigate the need to allow password-less `sudo` on the
+  target host to deploy remotely.
 
 ### Fixed