[documentation] #3945: Update MAINTAINERS.md

Signed-off-by: 6r1d <vic.6r1d@gmail.com>

MAINTAINERS.md

@@ -12,11 +12,11 @@ This is the list of maintainers, including their email address for direct commun
 | Ryu Okada             | [@ryuo88](https://github.com/ryuo88)                 | okada@soramitsu.co.jp           | Product vision                                                                |
 | Dmitri Venger         | [@dmitrivenger](https://github.com/dmitrivenger)     | venger@soramitsu.co.jp          | Project manager                                                               |
 | Bogdan Mingela        | [@Mingela](https://github.com/Mingela)               | mingela@soramitsu.co.jp         | Iroha Team Lead                                                               |
-| Aleksandr Petrosyan   | [@appetrosyan](https://github.com/appetrosyan)       | petrosyan@soramitsu.co.jp       | Tech lead, development: Rust, C, C++                                          |
+| Aleksandr Petrosyan   | [@appetrosyan](https://github.com/appetrosyan)       | petrosyan@soramitsu.co.jp       | Iroha 2 maintainer, previous tech lead, development: Rust, C, C++             |
 | Artemii Gerasimovich  | [@QuentinI](https://github.com/QuentinI)             | gerasimovich@soramitsu.co.jp    | Development: Rust                                                             |
 | Daniil Polyakov       | [@Arjentix](https://github.com/Arjentix)             | daniil.polyakov@soramitsu.co.jp | Development: Rust                                                             |
 | Ilia Churin           | [@ilchu](https://github.com/ilchu)                   | churin@soramitsu.co.jp          | Development: Rust                                                             |
-| Marin Veršić          | [@mversic](https://github.com/mversic)               | versic@soramitsu.co.jp          | Development: Rust                                                             |
+| Marin Veršić          | [@mversic](https://github.com/mversic)               | versic@soramitsu.co.jp          | Tech lead, development: Rust                                                  |
 | Sam H. Smith          | [@SamHSmith](https://github.com/SamHSmith)           | smith@soramitsu.co.jp           | Development: Rust, C                                                          |
 | Shanin Roman          | [@Erigara](https://github.com/Erigara)               | shanin@soramitsu.co.jp          | Development: Rust                                                             |
 | Shunkichi Sato        | [@s8sato](https://github.com/s8sato)                 | s.sato@soramitsu.co.jp          | Development: Rust                                                             |
@@ -29,4 +29,4 @@ This is the list of maintainers, including their email address for direct commun
 | Vasily Zyabkin        | [@BAStos525](https://github.com/BAStos525)           | zyabkin@soramitsu.co.jp         | DevOps                                                                        |
 | Ekaterina Mekhnetsova | [@outoftardis](https://github.com/outoftardis)       | mekhnetsova@soramitsu.co.jp     | Documentation                                                                 |
 | William Richter       | [@WRRicht3r](https://github.com/WRRicht3r)           | ryan.rrr66@gmail.com            | Documentation                                                                 |
-| Victor Gridnevsky     | [@6r1d](https://github.com/6r1d)                     | gridnevsky@soramitsu.co.jp      | Community manager, documentation, development: JavaScript, TypeScript, Python |
+| Victor Gridnevsky     | [@6r1d](https://github.com/6r1d)                     | gridnevsky@soramitsu.co.jp      | Community manager, documentation, development: JavaScript, TypeScript, Python |