Change option for dotnet_separate_import_directive_groups in the example

EditorConfig file to false, since that's the default for VS.

Author: tiesmaster

docs/ide/editorconfig-code-style-settings-reference.md

@@ -2217,7 +2217,7 @@ charset = utf-8-bom
 [*.{cs,vb}]
 # Organize usings
 dotnet_sort_system_directives_first = true
-dotnet_separate_import_directive_groups = true
+dotnet_separate_import_directive_groups = false
 
 # this. preferences
 dotnet_style_qualification_for_field = false:none