Update meilisync_postgresql.mdx

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Author: vaddenz

guides/database/meilisync_postgresql.mdx

@@ -9,7 +9,6 @@ Though Meilisearch is a database, it is not recommended you use it as your prima
 
 This guide teaches you to use [`meilisync`](https://github.com/long2ice/meilisync) to keep Meilisearch up to date with a PostgreSQL database. **Please be advised that meilisync is in its early developmental phase and is NOT PRODUCTION READY yet. You may encounter issues while interacting with it.**
 
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 ## Requirements
 
 - A command-line console, such as macOS's terminal or Window's Cygwin