Update Step 3 on README.md
the dfx.json proposes a list of cannisters, so if you don't specify which canister you refeer you won't be able to pass the argument as you'll get the following error: Error: The init argument can only be set when deploying a single canister.
Overview Why do we need this feature? What are we trying to accomplish? Just correcting documentation so that beginners doesn't have to fix the error.
Requirements What requirements are necessary to consider this problem solved? it's a simple solve
Considered Solutions What solutions were considered? this solves it
Recommended Solution What solution are you recommending? Why? just a little change on documentaiton won't break anything
Considerations What impact will this change have on security, performance, users (e.g. breaking changes) or the team (e.g. maintenance costs)? none