docs(instances): update instances list

add a new insatnce

fix https://github.com/zyachel/libremdb/issues/8

README.md

@@ -37,6 +37,7 @@ Inspired by projects like [teddit](https://codeberg.org/teddit/teddit), [nitter]
 | https://libremdb.herokuapp.com   | United States | Official; Hosted on Heroku                                |
 | https://libremdb.pussthecat.org  | Germany       | Operated by [PussTheCat.org](https://pussthecat.org/)     |
 | https://libremdbeu.herokuapp.com | Europe        | Operated by [toyboatcash](https://github.com/toyboatcash) |
+| https://lmdb.tokhmi.xyz/         | U.S.          | Operated by [Tokhmi](https://tokhmi.xyz)                  |
 
 ---
 
@@ -115,11 +116,11 @@ libremdb will start running at http://localhost:3000.
 
 To run libremdb with Docker, you need to install Docker & docker-compose.
 
-   ```bash
-   git clone https://github.com/zyachel/quetre.git # replace gituhb.com with codeberg.org if you wish so.
-   cd quetre
-   docker-compose up -d
-   ```
+```bash
+git clone https://github.com/zyachel/quetre.git # replace gituhb.com with codeberg.org if you wish so.
+cd quetre
+docker-compose up -d
+```
 
 ---