Update DEVELOPING.md (#450) #370

Job	Run time
1155 Contracts / build / Build	37s
ERC20Z Contracts / build / Build	26s
1155 Deployments / build / Build	31s
ERC20Z Contracts / coverage / Coverage	3m 24s
Comments / build / Build	25s
1155 Contracts / coverage / Coverage	59s
Comments / coverage / Coverage	41s
Protocol Rewards / build / Build	29s
Protocol Rewards / coverage / Coverage	1m 22s
Sparks / build / Build	25s
Sparks / coverage / Coverage	44s
Comments / storage_layout	0s
Comments / contract_sizes / Contract sizes	39s
Comments / slither / Slither	52s
Comments / test / Test	30s
ERC20Z Contracts / contract_sizes / Contract sizes	38s
ERC20Z Contracts / slither / Slither	1m 2s
ERC20Z Contracts / storage_layout / Storage layout inspection	36s
ERC20Z Contracts / test / Test	2m 11s
Sparks / storage_layout	0s
Sparks / contract_sizes / Contract sizes	40s
Sparks / slither / Slither	1m 33s
Sparks / test / Test	42s
1155 Deployments / test / Test	1m 3s
Protocol Rewards / storage_layout	0s
Protocol Rewards / contract_sizes / Contract sizes	36s
Protocol Rewards / slither / Slither	40s
Protocol Rewards / test / Test	49s
1155 Contracts / storage_layout / Storage layout inspection	37s
1155 Contracts / test / Test	31s
1155 Contracts / contract_sizes / Contract sizes	29s
1155 Contracts / slither / Slither	1m 22s
	25m 33s

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