Merge pull request #12816 from hashicorp/backport/nywilken/plugin-install-docs/currently-possible-unicorn

This pull request was automerged via backport-assistant

website/content/docs/plugins/install-plugins.mdx

@@ -220,7 +220,7 @@ directory, as documented in
 [Configuring Packer](https://developer.hashicorp.com/packer/docs/configure#packer-s-plugin-directory).
 
 For example, if your configuration directory is located in `~/.config/packer`,
-you can copy the binary to `~/.config/plugins/packer-plugin-NAME`, and
+you can copy the binary to `~/.config/packer/plugins/packer-plugin-NAME`, and
 Packer will be able to load it afterwards.
 
 If you have a `required_plugins` for the plugin you're manually installing, make sure