[Entitlements] Small fix on relative_path docs (#129984)

Author: ldematte

docs/extend/creating-classic-plugins.md

@@ -136,13 +136,12 @@ org.example.module: # or 'ALL-UNNAMED' if the plugin is non-modular
 Allows code to access the filesystem, to read or write paths as specified by the entitlement's fields. The filesystem of the OS hosting {{es}} may contain sensitive files, for example credentials. Some files are meant to be always accessible to {{es}}, but plugins can not access them directly: {{es}} enforces that certain files can only be read by its core code, while some other files can not be read or written at all. A plugin is always granted `read` access to the {{es}} config directory and `read_write` access to the temp directory; if the plugin requires to read, write or access additional files or directories, it must specify them via this entitlement.
 
 It is possible to specify 3 different types of file entitlement:
-  - `path` to specify an absolute path
-  - `relative_path` to specify a relative path. The path will be resolved via the `relative_to` field, which is used to qualify the relative path. It can be a specific {{es}} directory (`config` or `data`), or to the user home directory (`home`) (the home of the user running {{es}})
-  - `relative_path` to specify a path resolved via the `relative_to` field, which can have the following values:
-    - `config`: the {{es}} [config directory](https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html#config-files-location)
-    - `data`: the {{es}} [data directory](https://www.elastic.co/guide/en/elasticsearch/reference/current/path-settings-overview.html)
-    - `home`: the home directory of the user running {{es}}
-  - `path_setting` to specify a path defined via an {{es}} setting. The path can be absolute or relative; in the latter case, the path will be resolved using the `basedir_if_relative` path (which can assume the same values as `relative_to`)
+1. `path` to specify an absolute path
+2. `relative_path` to specify a relative path. Use the `relative_to` field to qualify the relative path. `relative_to` accepts the following options:
+   - `config`: the {{es}} [config directory](https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html#config-files-location)
+   - `data`: the {{es}} [data directory](https://www.elastic.co/guide/en/elasticsearch/reference/current/path-settings-overview.html)
+   - `home`: the home directory of the user running {{es}}
+3. `path_setting` to specify a path defined via an {{es}} setting. The path can be absolute or relative; in the latter case, the path will be resolved using the `basedir_if_relative` path (which can assume the same values as `relative_to`)
 
 Each of the 3 types has some additional fields:
 - `mode` (required): can be either `read` or `read_write`