move custom.css from css to config

configuration/introduction.md

@@ -58,8 +58,8 @@ The following properties can be configured, place them above the modules item:
 | `units`            | The units that will be used in the default weather modules. Possible values are `metric` or `imperial`.                                                                                                                                                                                                                                                                                                                                                                                                                                                   | `metric`                                   |
 | `electronOptions`  | An optional array of Electron (browser) options. This allows configuration of e.g. the browser screen size and position (example: `electronOptions: { fullscreen: false, width: 800, height: 600 }`). Kiosk mode can be enabled by setting `kiosk: true`, `autoHideMenuBar: false` and `fullscreen: false`. More options can be found [here](https://github.com/electron/electron/blob/master/docs/api/browser-window.md). This will most likely be used in advanced installations, below.                                                                | []                                         |
 | `electronSwitches` | An optional array of Electron switches. This allows configuration of electron app itself. <br> This properties will not affect the `serveronly` mode. Usually normal `MM` users don't need this property, but if you are a hard-core hacker, you might need this to handle Electron itself over `MagicMirror` provides. More options can be found [here](https://www.electronjs.org/docs/latest/api/command-line-switches) (Not all available switches are described there.)<br>example:`electronSwitches:["enable-transparent-visuals", "disable-gpu"];` | []                                         |
-| `customCss`        | The path of the `custom.css` stylesheet. The default is `css/custom.css`.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `css/custom.css`                           |
-| `watchTargets`     | An optional array of file paths to monitor when using `node --run server:watch`. When any of these files change, the server automatically restarts and connected browsers reload. Particularly useful when frequently modifying `config.js`, `custom.css`, or module files during development or setup. Example: `watchTargets: ["config/config.js", "css/custom.css", "modules/MMM-MyModule/MMM-MyModule.js"]`. See [Development Mode](/core-development/debugging.md#watch-mode-with-auto-reload) for more details.                                     | `undefined`                                |
+| `customCss`        | The path of the `custom.css` stylesheet. The default is `config/custom.css`.                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | `config/custom.css`                        |
+| `watchTargets`     | An optional array of file paths to monitor when using `node --run server:watch`. When any of these files change, the server automatically restarts and connected browsers reload. Particularly useful when frequently modifying `config.js`, `custom.css`, or module files during development or setup. Example: `watchTargets: ["config/config.js", "config/custom.css", "modules/MMM-MyModule/MMM-MyModule.js"]`. See [Development Mode](/core-development/debugging.md#watch-mode-with-auto-reload) for more details.                                  | `undefined`                                |
 
 After the above options, you will then add modules. See
 [module configuration](/modules/configuration.md) for more information.

core-development/debugging.md

@@ -47,7 +47,7 @@ property:
 let config = {
   watchTargets: [
     "config/config.js",
-    "css/custom.css",
+    "config/custom.css",
     "modules/MMM-MyModule/MMM-MyModule.js",
     "modules/MMM-MyModule/node_helper.js",
   ],

modules/clock.md

@@ -63,4 +63,4 @@ Current notifications are:
 | `CLOCK_SECOND` | A second has elapsed. <br> _Parameter_: second value |
 | `CLOCK_MINUTE` | A minute has elapsed <br> _Parameter_: minute value  |
 
-## styles for clock hands (analog) and text (digital) can be found in clock_style.css, use css/custom.css to override
+## styles for clock hands (analog) and text (digital) can be found in clock_style.css, use `config/custom.css` to override

modules/customcss.md

@@ -1,7 +1,7 @@
 # Custom CSS
 
 MagicMirror² comes with a default theme but it can be customized by placing a
-custom css-file in `css/custom.css`.
+custom css-file in `config/custom.css`.
 
 ### Example