DOCS-#2421: Fixes bad link on contributing from architecture.rst (#2427)
DOCS-#2421: Fixes bad link on contributing from architecture.rst (#2427)

Signed-off-by: Victor Fomin <ca018aead5f4c2de01d3ffa2e93da3d7127e6051@gmail.com>
modin-project/modin,modin-project/modin