Fix * Update URI to png ([`e810a79`](https://github.com/Stephen-RA-King/pynnacle/commit/e810a7956b265abcb7ebf1cafce76554ee63309e)) * Refresh project support files ([`ee21182`](https://github.com/Stephen-RA-King/pynnacle/commit/ee21182bdb771b4a45dd64d4e2088bf28eca89cd))