chore: mention yarn in contributing.md

Author: barjin

.github/workflows/lychee.yml

@@ -15,18 +15,23 @@ jobs:
                 uses: actions/setup-node@v4
                 with:
                     node-version: 22
-                    cache: 'npm'
-                    cache-dependency-path: 'package-lock.json'
                     always-auth: 'true'
 
             -   name: Enable corepack
                 run: |
                     corepack enable
+                    corepack prepare yarn@stable --activate
+    
+            -   name: Activate cache for Node.js
+                uses: actions/setup-node@v4
+                with:
+                    cache: yarn
+                    cache-dependency-path: yarn.lock
 
             -   name: Build docs
                 run: |
-                    npm ci --force
-                    npm run build
+                    yarn --immutable
+                    yarn build
                 env:
                     APIFY_SIGNING_TOKEN: ${{ secrets.APIFY_SIGNING_TOKEN }}
                     NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

CONTRIBUTING.md

@@ -18,17 +18,17 @@
 
 <!-- vale off -->
 1. Clone the repository
-2. Run `npm install`
-3. Start development server: `npm start`
+2. Run `yarn`
+3. Start development server: `yarn start`
 <!-- vale on -->
 
 This will be enough to work on Platform, Academy and OpenAPI. If you want to work on the entire documentation set, you need to join them using nginx.
 
 #### Join all repositories with nginx
 
 1. Clone all the repositories
-2. Run `npm start:dev` instead of `npm start` from the main repository
-3. Run `npm start -- --port <number>` to start Docusaurus instance on specific port, refer to the table for each repository port
+2. Run `yarn start:dev` instead of `yarn start` from the main repository
+3. Run `yarn start -- --port <number>` to start Docusaurus instance on specific port, refer to the table for each repository port
 
     |Repository|Port|
     |:---|:---|
@@ -155,12 +155,12 @@ The API reference documentation at [docs.apify.com](https://docs.apify.com/) is
 
 1. Install Node.js
 2. Clone the repository
-3. Run `npm install`
+3. Run `yarn`
 
 ### Basic commands
 
-- `npm start` - Starts docs preview server including API reference
-- `npm test` - Validates the definition
+- `yarn start` - Starts docs preview server including API reference
+- `yarn test` - Validates the definition
 
 ### Adding new documentation
 
@@ -246,7 +246,7 @@ Add languages by adding new folders at the appropriate path level.
 #### Submitting changes
 
 1. Make your changes following the guidelines above
-2. Test locally using provided npm commands
+2. Test locally using provided `yarn` commands
 3. Submit a pull request to the `main` branch
 4. Ensure all CI checks pass
 
@@ -258,8 +258,8 @@ Add languages by adding new folders at the appropriate path level.
 
     ```bash
 
-    npm install
-    npm start
+    yarn
+    yarn start
 
     ```
 
@@ -268,7 +268,7 @@ Add languages by adding new folders at the appropriate path level.
     - Clone all documentation repositories
     - Configure nginx server
     - Update hosts file
-    - Use `npm start:dev`
+    - Use `yarn start:dev`
 
 ## Quality check
 
@@ -277,15 +277,15 @@ Add languages by adding new folders at the appropriate path level.
 1. Markdown:
 
     ```bash
-    npm run lint:md # Checks for any issues using markdownlint
-    npm run lint:md:fix # Applies fixes
+    yarn lint:md # Checks for any issues using markdownlint
+    yarn lint:md:fix # Applies fixes
     ```
 
 2. Code:
 
     ```bash
-    npm run lint:code # Checks .js & .ts files
-    npm run lint:code:fix # Applies fixes
+    yarn lint:code # Checks .js & .ts files
+    yarn lint:code:fix # Applies fixes
     ```
 
 3. Prose: