Add primary contributions of Jihoon Song

Author: jihoonsong

docs/01-membership.md

@@ -46,7 +46,7 @@ Individuals from active working groups produce the membership by opting into Pro
 | [Roberto Saltini](https://github.com/saltiniroberto/) | 1 | [saltiniroberto/ethereum-research](https://github.com/saltiniroberto/ethereum-research/blob/main/README.md) |
 | **Protocol Prototyping** (6 contributors) | | |
 | [Carl Beekhuizen](https://github.com/CarlBeek/) | 1 | |
-| [Jihoon Song](https://github.com/jihoonsong) | 1 | |
+| [Jihoon Song](https://github.com/jihoonsong) | 1 | [jihoonsong/pglanding-jihoonsong](https://github.com/jihoonsong/pglanding-jihoonsong) |
 | [Jochem](https://github.com/jochem-brouwer/) | 1 | [ethereum/EIPs](https://github.com/ethereum/EIPs/pulls?q=author%3Ajochem-brouwer), [ethereum/execution-spec-tests](https://github.com/ethereum/execution-spec-tests/pulls?q=author%3Ajochem-brouwer), [ethereumjs/ethereumjs-monorepo](https://github.com/ethereumjs/ethereumjs-monorepo/pulls?q=is%3Apr+author%3Ajochem-brouwer) |
 | [Milos Stankovic](https://github.com/morph-dev) | 1 | [morph-dev/pglanding-morph-dev](https://github.com/morph-dev/pglanding-morph-dev) |
 | [Rahul](https://github.com/raxhvl) | 1 | [raxhvl/pglanding-raxhvl](https://github.com/raxhvl/pglanding-raxhvl) |