Bug Fixes
- Select better coin if contract address is chain
([100](https://github.com/crypkit/blockapi/pull/100),
[`7b79b8c`](https://github.com/crypkit/blockapi/commit/7b79b8c88ab9d6727d7518c3012f70c4e3146977))
Chores
- Reformat using new black version ([101](https://github.com/crypkit/blockapi/pull/101),
[`c271b48`](https://github.com/crypkit/blockapi/commit/c271b488a309f6cbd948adbf6e61502e049ce72c))