Document available settings for poetry config (#232)

docs/docs/cli.md

@@ -258,25 +258,7 @@ poetry config [options] [setting-key] [setting-value1] ... [setting-valueN]
 ````
 
 `setting-key` is a configuration option name and `setting-value1` is a configuration value.
-
-### Modifying repositories
-
-In addition to modifying the config section,
-the config command also supports making changes to the repositories section by using it the following way:
-
-```bash
-poetry config repositories.foo https://foo.bar/simple/
-```
-
-This will set the url for repository `foo` to `https://foo.bar/simple/`.
-
-If you want to store your credentials for a specific repository, you can do so easily:
-
-```bash
-poetry config http-basic.foo username password
-```
-
-If you do not specify the password you will be prompted to write it.
+See [Configuration](/configuration/) for all available settings.
 
 ### Options
 

docs/docs/configuration.md

+# Configuration
+
+Poetry can be configured via the `config` command ([see more about its usage here](/cli/#config))
+or directly in the `config.toml` file that will be automatically be created when you first run that command.
+This file can typically be found in one of the following directories:
+
+- macOS:   `~/Library/Application Support/pypoetry`
+- Windows: `C:\Users\<username>\AppData\Roaming\pypoetry`
+
+For Unix, we follow the XDG spec and support `$XDG_CONFIG_HOME`.
+That means, by default `~/.config/pypoetry`
+
+
+## Available settings
+
+### `settings.virtualenvs.create`: boolean
+Create a new virtualenv if one doesn't already exist.
+Defaults to `true`.
+
+### `settings.virtualenvs.in-project`: boolean
+Create the virtualenv inside the project's root directory.
+Defaults to `false`.
+
+### `settings.virtualenvs.path`: string
+Directory where virtualenvs will be created.
+Defaults to one of the following directories:
+
+- macOS:   `~/Library/Caches/pypoetry/virtualenvs`
+- Windows: `C:\Users\<username>\AppData\Local\pypoetry\Cache/virtualenvs`
+- Unix:    `~/.cache/pypoetry/virtualenvs`
+
+### `repository.<name>`: string
+Set a new alternative repository. See [Repositories](/repositories/) for more information.

docs/mkdocs.yml

@@ -12,6 +12,7 @@ pages:
   - Basic Usage: basic-usage.md
   - Libraries: libraries.md
   - Commands: cli.md
+  - Configuration: configuration.md
   - Repositories: repositories.md
   - Versions: versions.md
   - The pyproject.toml file: pyproject.md