Make config description concise

Co-authored-by: Sebastian Spier <github@spier.hu>

Author: zkoppert

README.md

@@ -10,7 +10,7 @@ The issues/pull requests/discussions to search for can be filtered by using a se
 |Time to First Response | The duration from creation to the initial comment or review.|
 |Time to Close | The period from creation to closure.|
 |Time to Answer (Discussions Only) | The time from creation to an answer.|
-|Time in Label | The time between when a label has a specific label applied to an issue/pull request/discussion and when it is removed. This requires the `LABELS_TO_MEASURE` env variable to be set.|
+|Time in Label | The duration from label application to removal, requires `LABELS_TO_MEASURE` env variable.|
 
 *For pull requests, these metrics exclude the time the PR was in draft mode.