Fix typo (#16522)

Author: qwerty287

docs/content/doc/advanced/config-cheat-sheet.en-us.md

@@ -507,7 +507,7 @@ relation to port exhaustion.
 - `ALLOW_CROSS_REPOSITORY_DEPENDENCIES` : **true** Enable this to allow dependencies on issues from any repository where the user is granted access.
 - `ENABLE_USER_HEATMAP`: **true**: Enable this to display the heatmap on users profiles.
 - `ENABLE_TIMETRACKING`: **true**: Enable Timetracking feature.
-- `DEFAULT_ENABLE_TIMETRACKING`: **true**: Allow repositories to use timetracking by deault.
+- `DEFAULT_ENABLE_TIMETRACKING`: **true**: Allow repositories to use timetracking by default.
 - `DEFAULT_ALLOW_ONLY_CONTRIBUTORS_TO_TRACK_TIME`: **true**: Only allow users with write permissions to track time.
 - `EMAIL_DOMAIN_WHITELIST`: **\<empty\>**: If non-empty, list of domain names that can only be used to register
   on this instance.