README.md updated

README.md

@@ -67,7 +67,7 @@ Tool is customisable, take a look at list of all arguments that can be passed. E
 | -a | --assembly | :x: | Startup assembly file path and name. Can be obtained by `$(OutputPath)\$(AssemblyName).dll` | |
 | -p | --providers | :heavy_check_mark: | A list of configuration providers from which all setting keys are taken. All types derived from `IConfigurationProvider` | `JsonConfigurationProvider` |
 | -i | --include | :heavy_check_mark: | A list of keys to include despite of providers list configuration. Example: `PROCESSOR_ARCHITECTURE` | |
-| -x | --exclude | :heavy_check_mark: | A list of keys to exclude from all collected settings. Example: `Logging:LogLevel:Microsoft.AspNetCore` | |
+| -x | --exclude | :heavy_check_mark: | A list of keys to exclude from all collected settings. Example: `Logging:LogLevel:Microsoft.AspNetCore` will remove exact key, `Logging:LogLevel` will remove also all nested keys | |
 | -s | --separator | :heavy_check_mark: | Setting nesting separator | `__` (double underscore) |
 | -v | ‑‑yaml‑variable‑name | :heavy_check_mark: | YAML variable name | `app_config` |
 | -y | --to-yaml | :heavy_check_mark: | Indicates whether configuration wrapped in YAML Azure DevOps variables file | `false` |