Add a section about proxy support (#814)
Add a section about proxy support (#814)

* Add a section about proxy support

* Fix linting error

* Provide a minimal example

* Use an example for the section

Co-authored-by: Brian Rutledge <760e7dab2836853c63805033e514668301fa9c47@bhrutledge.com>

* Fix linting error

* Add one more example

Co-authored-by: Ian Stapleton Cordasco <cd1c2139308d6ba2ef5c50028ba60642520383c3@gmail.com>

* Fix linting error

* Make the section simpler

Co-authored-by: Brian Rutledge <760e7dab2836853c63805033e514668301fa9c47@bhrutledge.com>

Co-authored-by: Brian Rutledge <760e7dab2836853c63805033e514668301fa9c47@bhrutledge.com>
Co-authored-by: Ian Stapleton Cordasco <cd1c2139308d6ba2ef5c50028ba60642520383c3@gmail.com>
pypa/twine