Update CHANGELOG.md

Author: rjmholt

CHANGELOG.md

@@ -57,7 +57,7 @@ Finally, a crude breakdown of the work from the commits:
 - Implement PSRL idle handling
 - Implement completions
 - Move to invoking PSRL as a C# delegate
-- Implement cancellation <kbd>Ctrl</kbd>+<kbd>C</kbd>
+- Implement cancellation and <kbd>Ctrl</kbd>+<kbd>C</kbd>
 - Make <kbd>F8</kbd> work again
 - Ensure execution policy is set correctly
 - Implement $PROFILE support