chore: replace yarn scripts with pnpm scripts

.gitignore

@@ -3,12 +3,6 @@
 # dependencies
 /node_modules
 /.pnp
-.yarn/*
-!.yarn/patches
-!.yarn/releases
-!.yarn/plugins
-!.yarn/sdks
-!.yarn/versions
 .pnp.*
 
 # testing

CONTRIBUTING.md

@@ -12,25 +12,52 @@ Here is a quick guide to doing code contributions to the library.
 
 3. Install packages by running:
 
-   > yarn
+   ```shellscript
+   pnpm install
+   ```
 
 4. Startup a local version of the docs
 
-   > yarn start
+   ```shellscript
+   pnpm run dev
+   ```
 
 5. Ensure your code is formatted properly
 
-   > yarn format
+   ```shellscript
+   pnpm run format
+   ```
 
 6. Push your branch: `git push -u origin your-meaningful-branch-name`
 
 7. Submit a pull request to the upstream react-hook-form repository.
 
 8. Choose a descriptive title and describe your changes briefly.
 
+## Testing production build
+
+To test the documentation production site on your local machine,
+first execute the build script:
+
+```shellscript
+pnpm run build
+```
+
+Then start a local server which serves the file created by executing
+
+```shellscript
+pnpm run start
+```
+
 ## Coding style
 
-Please follow the coding style of the project. React Hook Form uses prettier. If possible, enable the prettier plugin in your editor to get real-time feedback. The formatting can be run manually with the following command: `yarn format`
+Please follow the coding style of the project.
+React Hook Form uses prettier.
+If possible, enable the prettier plugin in your editor to get real-time feedback. The formatting can be run manually with the following command:
+
+```shellscript
+pnpm run format
+```
 
 ## License
 

README.md

@@ -10,7 +10,9 @@
 
 ## Install
 
-    yarn && yarn start
+```shellscript
+pnpm install && pnpm dev
+```
 
 ## Backers
 

package.json

@@ -60,14 +60,14 @@
     "dev": "next dev",
     "format": "prettier --write",
     "lint": "next lint --fix",
-    "now-build": "npm run build",
+    "now-build": "pnpm run build",
     "start": "next start",
     "typecheck": "tsc --noEmit",
     "prepare": "husky install"
   },
   "lint-staged": {
     "*.{ts,tsx,mdx,css,json}": [
-      "npm run format"
+      "pnpm run format"
     ]
   }
 }