add missing special characters to committer name (#2466)

Signed-off-by: Michael Robinson <[email protected]>

COMMITTERS.md

@@ -24,7 +24,7 @@ They take responsibility for guiding new pull requests into the main branch.
 | Michael Robinson | [@merobi-hub](https://github.com/merobi-hub) |
 | Ross Turk | [@rossturk](https://github.com/rossturk) |
 | Minkyu Park | [@fm100](https://github.com/fm100) |
-| Pawel Leszczynski | [@pawel-big-lebowski](https://github.com/pawel-big-lebowski) |
+| Paweł Leszczyński | [@pawel-big-lebowski](https://github.com/pawel-big-lebowski) |
   
 ## Emeritus