Fix brokeb CI

When merging the previous PR, the final yml add missing spaces and consequently was failing.

Surprisingly enough, github action didn't say anything about it.

Anyway, this is to fix the CI.

📝 add support of opcode for ERC20 mvp

Merge pull request kkrt-labs#12 from abdelhamidbakhta:feature/intrins…

…ic-gas-cost

📝 update readme