Add decentralized pinning services into the "Website Hosting"

docs/how-to/websites-on-ipfs/single-page-website.md

@@ -228,6 +228,62 @@ An easy way to make sure important data is retained is to use a pinning service.
 
    ![Random planet fact website pinned using Pinata and displayed in Firefox](./images/single-page-website/pinned-random-planet-fact-website.png)
 
+#### Decentralized pinning services
+
+For decentralized websites and apps, it is also possible to pin them on IPFS through a decentralized approach. Technically, decentralized pinning services are realized by blockchain technologies such as [Filecoin](https://filecoin.io/), [Crust Network](crust.network), etc.
+
+Some well-known DApps, such as [Polkadot Apps](dotapps.io) and [Uniswap Interface](https://app.uniswap.org/#/swap), **have all been pinned to IPFS by integrating Crust decentralized deployment**. For this reason, we're going to use [Crust Network](https://crust.network/) for demonstration in this tutorial.
+
+0. Prerequest
+
+   > Please make sure you have **Node.js** env, you can go to [download page](https://nodejs.org/en/download/package-manager/) for installation. Be sure to have **IPFS** running locally, you can refer to [this page](https://ipfs.io/#install) to install and run IPFS.
+
+1. Install Crust Command Line
+
+   ```shell
+   sudo npm i -g @crustio/crust-cli
+   ```
+
+2. Login with seeds
+
+   > *SEEDS* are 12 secret words of your Crust account. You can refer to this [guide](crust-account.md) to create your Crust Account.
+
+   ```shell
+   crust-cli login [SEEDS]
+   ```
+
+3. Pin the `index.html` file for your website
+
+   Navigate to the directory of the `index.html` file
+
+   ```shell
+   crust-cli pin index.html
+   ```
+
+   You'll get an IPFS cid from this step, for example: `QmZsYLxJA6pW4mQVi6qskFRDcSWvQcS6wPfteQNzUQWY3m`.
+
+4. Publish the `index.html`
+
+   ```shell
+   crust-cli publish QmZsYLxJA6pW4mQVi6qskFRDcSWvQcS6wPfteQNzUQWY3m
+   ```
+
+   Now your website is published into Crust Network. Storage nodes in Crust Network will get notified and your website pinned to store.
+
+5. Query status
+
+   After publishing your website, you can run this command to check how many nodes have pinned your website
+
+   ```shell
+   crust-cli status QmZsYLxJA6pW4mQVi6qskFRDcSWvQcS6wPfteQNzUQWY3m
+   ```
+
+   ```shell
+   ✅ QmZsYLxJA6pW4mQVi6qskFRDcSWvQcS6wPfteQNzUQWY3m picked, replicas: 149
+   ```
+
+Crust also provides a [general Github workflow](https://github.com/crustio/ipfs-crust-pinner/blob/main/.github/workflows/template.yml) guiding developers to deploying a website/DApp in a decentralized way by establishing a consistent and automated CI/CD pipeline. Uniswap and Polakdot both are integrated in such an approach.
+
 ## Set up a domain
 
 This section is completely optional.