Fix typo in my username in the experts file (python#640)

lysnikolaou · web-flow · commit 99b271cb18be · 2020-10-29T00:14:19.000+02:00
diff --git a/experts.rst b/experts.rst
@@ -280,7 +280,7 @@ Tools
 Tool                Maintainers
 ==================  ===========
 Argument Clinic     larry
-PEG Generator       gvanrossum, pablogsal, lysnikolaou
+PEG Generator       gvanrossum, pablogsal, lys.nikolaou
 ==================  ===========
 
 
@@ -339,7 +339,7 @@ memoryview
 networking          giampaolo.rodola,
 object model        benjamin.peterson, twouters
 packaging           tarek, lemburg, alexis, eric.araujo, dstufft, paul.moore
-peg parser          gvanrossum, pablogsal, lysnikolaou
+peg parser          gvanrossum, pablogsal, lys.nikolaou
 performance         brett.cannon, vstinner, serhiy.storchaka, yselivanov, rhettinger, Mark.Shannon
 pip                 ncoghlan, dstufft, paul.moore, Marcus.Smith, pradyunsg
 py3 transition      benjamin.peterson
