`moonworm watch` no longer bugs out on ABIs with constructors

Previously ABI items who no "name" key would cause moonworm watch to crash.

This release fixes this bug, and adds a HOWTO guide for how to use the moonworm watch command to monitor smart contracts.

What's Changed

• Release pypi work with token by @kompotkot in #116
• Filter out unnamed items from ABI on moonworm watch by @zomglings in #118

Full Changelog: v0.7.1...v0.7.2