copy updates

Author: jaffrepaul

docs/guides/core-concepts/cypress-app.mdx

@@ -181,18 +181,16 @@ in Cypress Cloud.
 
 The Debug page allows you to easily debug failed CI test runs from within the
 Cypress app. From this page, you can review, rerun, and debug failed CI test
-runs that are recorded to Cypress Cloud (see [note above](#Overview)) – all
+runs that are recorded to Cypress Cloud (see [note above](#Overview)) - all
 without leaving the Cypress app.
 
 This feature eliminates the tedious process of switching between Cypress, your
 local editor, and CI output, in order to fix failed tests. It does this by
-enabling you to use the [Test Runner](#Test-Runner) to run only the tests that
-failed in your last recorded test run, as well as review screenshots, videos,
+enabling you to use the [Test Runner](#Test-Runner) to run only the tests that failed in your last recorded test run, as well as review screenshots, videos,
 and logs from your tests.
 
 The Debug page shows the latest completed [test run](/guides/cloud/runs) that
-matches the HEAD commit of your local project. If no run is found for your
-current commit, then Cypress shows the most recent run in your branch's history
+matches the HEAD commit (the commit currently checked out in the working directory) of your local project. Users can see and switch to relevant runs within the Debug page. If no run is found for your current commit, then Cypress shows the most recent run in your branch's history
 up until the current commit. The first **100** failed tests are listed, with a
 link to Cypress Cloud to review the full run.