[Nethermind] Add Marcos Maceo (part-time)

Author: kamilchodola

docs/01-membership.md

@@ -130,7 +130,7 @@ Individuals from active working groups produce the membership by opting into Pro
 | [pinges](https://github.com/pinges/) | 1 | [hyperledger/besu](https://github.com/hyperledger/besu/pulls?q=author%3Apinges) |
 | [Sally Macfarlane](https://github.com/macfarla/) | 1 | [hyperledger/besu](https://github.com/hyperledger/besu/pulls?q=author%3Amacfarla) |
 | [Simon Dudley](https://github.com/siladu/) | 1 | [hyperledger/besu](https://github.com/hyperledger/besu/pulls?q=author%3Asiladu) |
-| **Nethermind** (15 contributors) | | [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind) |
+| **Nethermind** (17 contributors) | | [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind) |
 | [Ahmad Bitar](https://github.com/smartprogrammer93) | 0.5 | [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3Asmartprogrammer93+) |
 | [Alexey Osipov](https://github.com/flcl42) | 1 | [NethermindEth/nethermind](https://github.com/flcl42?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls/flcl42) |
 | [Anders Kristiansen](https://github.com/ak88) | 0.5 | [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3Aak88) |
@@ -142,6 +142,7 @@ Individuals from active working groups produce the membership by opting into Pro
 | [Łukasz Rozmej](https://github.com/LukaszRozmej/) | 1 | [NethermindEth/nethermind](https://github.com/LukaszRozmej?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3ALukaszRozmej) |
 | [Marc Harvey-Hill](https://github.com/Marchhill) | 0.5 | [NethermindEth/nethermind](https://github.com/Marchhill?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3AMarchhill) |
 | [Marcin Sobczak](https://github.com/marcindsobczak/) | 1 | [NethermindEth/nethermind](https://github.com/marcindsobczak?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3Amarcindsobczak) |
+| [Marcos Maceo](https://github.com/stdevMac/) | 0.5 | [NethermindEth/nethermind](https://github.com/stdevMac?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/commits/master/?author=stdevMac) |
 | [Marek Moraczyński](https://github.com/MarekM25/) | 0.5 | [NethermindEth/nethermind](https://github.com/MarekM25?org=NethermindEth), [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3AMarekM25) |
 | [Muhammad Amirul Ashraf](https://github.com/asdacap) | 1 |[NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3Aasdacap) |
 | [Ruben Buniatyan](https://github.com/rubo/) | 0.5 | [NethermindEth/nethermind](https://github.com/NethermindEth/nethermind/pulls?q=author%3Arubo) |