Update linting documentation and workflow examples

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

developer_manual/digging_deeper/continuous_integration.rst

@@ -13,6 +13,8 @@ We highly recommend setting up automated tests for your app, so that every chang
 * Unit testing: run unit tests for front-end and back-end where individual classes and components are tested in isolation
 * Integration testing: test components when they are combined
 
+You can find a list of available github workflow templates in our `nextcloud template repository <https://github.com/nextcloud/.github>`_.
+
 Linting
 -------
 
@@ -43,28 +45,24 @@ You can validate the ``info.xml`` :ref:`app metadata<app metadata>` file of an a
 php
 ^^^
 
-A lint of all php source files can find syntax errors that could crash the application in production. The github action below uses a test matrix of multiple php versions. Adjust it to the ones your app supports.
+A lint of all php source files can find syntax errors that could crash the application in production. You can find the github actions in our `nextcloud template repository <https://github.com/nextcloud/.github>`_.
+You will also require the following lint script in your ``composer.json``:
 
-.. code-block:: yaml
+.. code-block:: json
+
+  {
+    "scripts": {
+      "lint": "find . -name \\*.php -not -path './vendor/*' -print0 | xargs -0 -n1 php -l"
+    }
+  }
+
+php-cs
+^^^^^^
+
+We encourage the usage of php-cs linting. You can find some documentation on how to set this up in the
+`nextcloud coding-standard repository <https://github.com/nextcloud/coding-standard>`_ as well as the
+relevant github actions in our `nextcloud template repository <https://github.com/nextcloud/.github>`_.
 
-  name: Lint
-  on: pull_request
-    php-linters:
-      runs-on: ubuntu-latest
-      strategy:
-        matrix:
-          php-versions: [7.3, 7.4]
-      name: php${{ matrix.php-versions }} lint
-      steps:
-      - name: Checkout
-        uses: actions/checkout@master
-      - name: Set up php${{ matrix.php-versions }}
-        uses: shivammathur/setup-php@master
-        with:
-          php-version: ${{ matrix.php-versions }}
-          coverage: none
-      - name: Lint
-        run: composer run lint
 
 .. _app-static-analysis:
 

developer_manual/digging_deeper/npm.rst

@@ -81,22 +81,25 @@ npm run lint (optional)
 -----------------------
 
 Nextcloud apps that use linting tools for consistent code formatting typically add a ``lint`` script to their
-``package.json``:
+``package.json`` and install the appropriate `eslint config <https://www.npmjs.com/package/@nextcloud/eslint-config>`_:
 
 .. code-block:: json
 
   {
     "scripts": {
-      "lint": "eslint --ext .js,.vue src"
+      "lint": "eslint --ext .js,.vue src",
+      "lint:fix": "eslint --ext .js,.vue src --fix"
     }
   }
 
-If style linting is a separate script, ``stylelint`` shall be used as conventional script name:
+If style linting is a separate script, ``stylelint`` shall be used as conventional script name.
+You can find the standard nextcloud `stylelint config <https://www.npmjs.com/package/@nextcloud/stylelint-config>`_ on npm too.
 
 .. code-block:: json
 
   {
     "scripts": {
-      "stylelint": "stylelint src"
+      "stylelint": "stylelint src",
+      "stylelint:fix": "stylelint src --fix"
     }
   }