chore: Promote @oleg-nenashev to maintainers (#6522)

* Promote @oleg-nenashev to maintainers

FTR keptn/community#91

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

* chore: minor update to pass semantic versioning

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

MAINTAINERS

@@ -3,7 +3,7 @@
 # Names added to this file should be in the following format:
 #     Individual's Name, @githubhandle, Affiliation
 
-# The different levels of membership are outlined here
+# The different levels of membership are outlined here:
 # https://github.com/keptn/community/blob/master/COMMUNITY_MEMBERSHIP.md
 # Before adding yourself to the list below, please have a look at this document.
 
@@ -27,6 +27,7 @@ Klaus Strießnig, @kirdock, Dynatrace
 Moritz Wiesinger, @mowies, Dynatrace
 Anna Reale, @RealAnna, Dynatrace
 Ondrej Dubaj, @odubajDT, Dynatrace
+Oleg Nenashev, @oleg-nenashev, Dynatrace/CDF/Jenkins
 
 # Approvers
 
@@ -39,7 +40,6 @@ Arthur Pitman, @arthurpitman, Dynatrace
 Gabriel Tanner, @tannergabriel, Dynatrace
 Gilbert Tanner, @TannerGilbert, Dynatrace
 Kavindu Dodanduwa, @kavindu-dodan, Dynatrace
-Oleg Nenashev, @oleg-nenashev, Dynatrace/CDF/Jenkins
 Rob Jahn, @robertjahn, Dynatrace
 Suraj Banakar, @vadasambar, No Affiliation
 Thomas Schütz, @thschue, Dynatrace