note about the `dsn`

[azzamsa]

Hi, 👋

I would like to add a note about the dsn. Many had issues with database connections. One of them comes from not escaping the symbols in dsn such as escaping ! or @.

Percent-encoding may be used to include symbols with special meaning in any of the URI parts, e.g., replace = with %3D.

https://www.postgresql.org/docs/11/libpq-connect.html#id-1.7.3.8.3.6

You can use something like https://www.urlencoder.org/.

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I would like make a PR for this. Where should I add this info?

Thanks for Memos 🥗

[boojack]

@azzamsa You can modify the following file about description for dsn option. https://github.com/usememos/dotcom/blob/main/content/docs/install/self-hosting.md#parameter-options