Add nexusmods (#4080)

* Update category-games-!cn

* Create nexusmods

data/category-games-!cn

@@ -20,6 +20,7 @@ include:konami
 include:lowiro
 include:modrinth
 include:nexon
+include:nexusmods
 include:nikke
 include:nintendo
 include:op
@@ -63,8 +64,6 @@ mobimon.com.tw
 muvluv-girls-garden.com
 namemc.com
 neoforged.net
-nexus-cdn.com
-nexusmods.com
 noxygames.com
 offworldindustries.com
 offworldindustries.net

data/nexusmods

@@ -0,0 +1,2 @@
+nexus-cdn.com
+nexusmods.com