docs: updated some commands and improved a statement

Some old commands were not working; replaced them with the new ones.

Reference: for fixing  package installation, took the reference from tailwindlabs/tailwindcss#3432 (comment)

Author: swapnilmmane

docs/how-to-guides/integrations/integrate-tailwindcss.mdx

@@ -28,7 +28,7 @@ The code that we will cover in this guide can also be found in our GitHub [examp
 Install `tailwindcss` package and its peer-dependencies using yarn, by running the following command from root of your project:
 
 ```
-yarn add -D tailwindcss@npm:@tailwindcss/postcss7-compat^2.1.2 postcss@^7 autoprefixer@^9
+yarn add -D tailwindcss@npm:@tailwindcss/postcss7-compat@^2.1.2 postcss@^7 autoprefixer@^9
 ```
 :::info
 Webiny currently uses [Webpack 4](https://v4.webpack.js.org/) which doesn't support PostCSS 8 yet. So, we'll need to install the [Tailwind CSS v2.0 PostCSS 7 compatibility](https://tailwindcss.com/docs/installation#post-css-7-compatibility-build) build for now as shown above.
@@ -163,7 +163,7 @@ Now that we have added Tailwind CSS to Webpack configuration, let's move on to t
 Next, generate your `tailwind.config.js` file. From the root of your project run the following command:
 
 ```
-tailwindcss init
+npx tailwindcss init
 ```
 
 :::note
@@ -191,7 +191,7 @@ module.exports = {
 Learn more about configuring Tailwind in the [configuration documentation](https://tailwindcss.com/docs/configuration).
 :::
 
-Now that we have this global configuration, let's use it in the **Website** `(apps/website)` React application as shown below:
+Now that we have this global configuration, let's use it in the **Website** `(apps/website)` React application by creating a `tailwind.config.js` file in `apps/website/code` directory as shown below:
 
 ```js title="apps/website/code/tailwind.config.js"
 // Import config from the project root.
@@ -216,13 +216,13 @@ Tailwind CSS swaps these directives out at build-time with all of the styles it
 That's all! Now, when you start your **Website** `(apps/website)` React application locally, by running:
 
 ```
-yarn watch --env=local
+yarn webiny watch apps/website --env dev
 ```
 
 Or build it (which happens automatically for you when you deploy your application using `webiny deploy` command):
 
 ```
-yarn build --env=<YOUR_ENV>
+yarn webiny deploy apps/website --env {environment}
 ```
 Tailwind CSS is ready to use in your Webiny project.