ni: fix link to toml
## Introduction
This plugin uses the nickel library in order to read/write
-[metakeys](/doc/help/elektra-metadata.md) in the nickel ini format. It's purpose is to be
+[metakeys](/doc/help/elektra-metadata.md) in the nickel ini format. Its purpose is to be
used in the `spec`-namespace or when any metadata should be
stored.
-For other applications, e.g. modifying `smb.conf` you should prefer the
-[ini plugin](/src/plugins/ini).
+For configuration itself you should prefer the [toml plugin](/src/plugins/toml).
## Usage
