chore: Update docs and readme to add pnpm command (#955)

Author: vcapretz

README.md

@@ -36,6 +36,12 @@ yarn add @react-email/button -E
 npm install @react-email/button -E
 ```
 
+#### With pnpm
+
+```sh
+pnpm install @react-email/button -E
+```
+
 ## Getting started
 
 Add the component to your email template. Include styles where needed.

docs/_snippets/localdev.mdx

@@ -7,11 +7,11 @@ git clone https://github.com/resendlabs/react-email.git
 2. Install all dependencies:
 
 ```sh
-yarn install
+pnpm install
 ```
 
 3. Run local servers and watch for changes:
 
 ```sh
-yarn dev
+pnpm dev
 ```

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "build": "turbo run build",
-    "dev": "turbo run dev --parallel",
+    "dev": "turbo run dev --parallel --concurrency 25",
     "format": "prettier --write \"**/*.{ts,tsx,md}\"",
     "format:check": "prettier --check \"**/*.{ts,tsx,md}\"",
     "lint": "turbo run lint",