reference to a section that does not exist

[vsu727]

1. Broken Link in coordinator/README.md:
   The "Note:..." section contains a link to Local Testing on M1/M2 Mac, which does not exist.

2. Incorrect Information in rollup/README.md:
   The README mentions three essential rollup services, but only two (gas_oracle and rollup_relayer) exist in the cmd directory.
   The Rollup Relayer is described as having three components, but there are actually two.

[vsu727]

PR #1536