Revised and moved the C# using statement reference

[pkulikov]

Internal previews

📄 File(s)	🔗 Preview link(s)
docs/core/extensions/high-performance-logging.md	Preview: docs/core/extensions/high-performance-logging
docs/csharp/fundamentals/coding-style/coding-conventions.md	Preview: docs/csharp/fundamentals/coding-style/coding-conventions
docs/csharp/fundamentals/exceptions/exception-handling.md	Preview: docs/csharp/fundamentals/exceptions/exception-handling
docs/csharp/fundamentals/exceptions/how-to-execute-cleanup-code-using-finally.md	Preview: docs/csharp/fundamentals/exceptions/how-to-execute-cleanup-code-using-finally
docs/csharp/language-reference/builtin-types/ref-struct.md	Preview: docs/csharp/language-reference/builtin-types/ref-struct
docs/csharp/language-reference/compiler-messages/cs1656.md	Preview: docs/csharp/language-reference/compiler-messages/cs1656
docs/csharp/language-reference/compiler-messages/cs1674.md	Preview: docs/csharp/language-reference/compiler-messages/cs1674
docs/csharp/language-reference/keywords/try-catch-finally.md	Preview: docs/csharp/language-reference/keywords/try-catch-finally
docs/csharp/language-reference/keywords/try-finally.md	Preview: docs/csharp/language-reference/keywords/try-finally
docs/csharp/language-reference/keywords/using-directive.md	Preview: docs/csharp/language-reference/keywords/using-directive
docs/csharp/language-reference/keywords/using.md	Preview: docs/csharp/language-reference/keywords/using
docs/csharp/language-reference/operators/new-operator.md	Preview: docs/csharp/language-reference/operators/new-operator
docs/csharp/language-reference/statements/using.md	Preview: docs/csharp/language-reference/statements/using
docs/csharp/misc/cs0210.md	Preview: docs/csharp/misc/cs0210
docs/csharp/misc/cs1655.md	Preview: docs/csharp/misc/cs1655
docs/csharp/misc/cs1657.md	Preview: docs/csharp/misc/cs1657
docs/csharp/programming-guide/classes-and-structs/finalizers.md	Preview: docs/csharp/programming-guide/classes-and-structs/finalizers
docs/csharp/programming-guide/classes-and-structs/implicitly-typed-local-variables.md	Preview: docs/csharp/programming-guide/classes-and-structs/implicitly-typed-local-variables
docs/csharp/programming-guide/file-system/how-to-write-to-a-text-file.md	Preview: docs/csharp/programming-guide/file-system/how-to-write-to-a-text-file
docs/csharp/tutorials/console-teleprompter.md	Preview: docs/csharp/tutorials/console-teleprompter
docs/framework/data/adonet/establishing-the-connection.md	Preview: docs/framework/data/adonet/establishing-the-connection
docs/framework/data/adonet/sql-server-connection-pooling.md	Preview: docs/framework/data/adonet/sql-server-connection-pooling
docs/fundamentals/code-analysis/quality-rules/ca2000.md	Preview: docs/fundamentals/code-analysis/quality-rules/ca2000
docs/fundamentals/code-analysis/style-rules/ide0063.md	Preview: docs/fundamentals/code-analysis/style-rules/ide0063
docs/iot/tutorials/adc.md	Preview: docs/iot/tutorials/adc
docs/iot/tutorials/blink-led.md	Preview: docs/iot/tutorials/blink-led
docs/iot/tutorials/gpio-input.md	Preview: docs/iot/tutorials/gpio-input
docs/iot/tutorials/lcd-display.md	Preview: docs/iot/tutorials/lcd-display
docs/iot/tutorials/temp-sensor.md	Preview: docs/iot/tutorials/temp-sensor
docs/standard/garbage-collection/implementing-disposeasync.md	Preview: docs/standard/garbage-collection/implementing-disposeasync
docs/standard/garbage-collection/using-objects.md	Preview: docs/standard/garbage-collection/using-objects
docs/standard/memory-and-spans/memory-t-usage-guidelines.md	Preview: docs/standard/memory-and-spans/memory-t-usage-guidelines
docs/standard/serialization/system-text-json/use-dom-utf8jsonreader-utf8jsonwriter.md	Preview: docs/standard/serialization/system-text-json/use-dom-utf8jsonreader-utf8jsonwriter

[BillWagner]

Thanks @pkulikov

This LGTM.

I'll now.