Fix broken links in documentation

doc/sphinx/book/app_c_lua_tutorial.rst

doc/sphinx/book/app_d_plugins.rst

doc/sphinx/book/box/admin.rst

doc/sphinx/book/box/authentication.rst

doc/sphinx/book/box/box_introspection.rst

doc/sphinx/book/box/box_schema.rst

doc/sphinx/book/box/box_session.rst

doc/sphinx/book/box/box_space.rst

doc/sphinx/book/box/index.rst

doc/sphinx/book/box/limitations.rst

doc/sphinx/book/box/net_box.rst

doc/sphinx/book/box/triggers.rst

doc/sphinx/book/configuration.rst

doc/sphinx/book/connectors/index.rst

doc/sphinx/book/index.rst

doc/sphinx/book/intro.rst

doc/sphinx/book/replication/index.rst

doc/sphinx/conf.py

doc/sphinx/dev_guide/box-protocol.rst

doc/sphinx/dev_guide/building_from_source.rst