docs: add hugging face installation guide (#432)

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website/docs/installation/hugging-face/index.md

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+---
+sidebar_label: Hugging Face Spaces
+---
+# Hugging Face Spaces
+
+In this guide, you will learn how to deploy your own Tabby instance and use it for development directly from the Huggingface website.
+
+## Your first Tabby Space
+
+In this section, you will learn how to deploy a Tabby Space and use it for yourself or your orgnization.
+
+### Deploy Tabby on Spaces
+
+You can deploy Tabby on Spaces with just a few clicks:
+
+[![Deploy on HF Spaces](https://huggingface.co/datasets/huggingface/badges/raw/main/deploy-to-spaces-lg.svg)](https://huggingface.co/spaces/TabbyML/tabby-template-space?duplicate=true)
+
+You need to define the Owner (your personal account or an organization), a Space name, and the Visibility. To secure the api endpoint, we're configuring the visibility as Private.
+
+![Duplicate Space](./duplicate-space.png)
+
+:::tip
+If you want to customize the title, emojis, and colors of your space, go to "Files and Versions" and edit the metadata of your README.md file.
+:::
+
+You’ll see the Building status and once it becomes Running your space is ready to go. If you don’t see the Tabby swagger UI, try refreshing the page.
+
+![Swagger UI](./swagger-ui.png)
+
+### Your Tabby Space URL
+Once Tabby is running, you can use the UI with the <u>Direct URL</u> in the **Embed this Space** option (top right).
+You’ll see a URL like this: https://tabbyml-tabby.hf.space. This URL gives you access to a full-screen, stable Tabby instance, and is the API Endpoint for IDE / Editor Extensions to talk with.
+
+### Connect VSCode Extension to Space backend
+1. Install the [VSCode Extension](https://marketplace.visualstudio.com/items?itemName=TabbyML.vscode-tabby).
+2. Open the file located at `~/.tabby-client/agent/config.toml`. Uncomment both the `[server]` section and the `[server.requestHeaders]` section.
+   * Set the endpoint to the Direct URL you found in the previous step, which should look something like `https://UserName-SpaceName.hf.space`.
+   * As the space is set to **Private**, it is essential to configure the authorization header for accessing the endpoint. You can obtain a token from the [Access Tokens](https://huggingface.co/settings/tokens) page.
+
+<center>
+
+![Agent Config](./agent-config.png)
+
+</center>
+
+3. You'll notice a ✓ icon indicating a successful connection.
+![Tabby Connected](./tabby-connected.png)
+
+4. You've complete the setup, now enjoy tabing!
+
+<center>
+
+![Code Completion](./code-completion.png)
+
+</center>
+
+You can also utilize Tabby extensions in other IDEs, such as [JetBrains](https://plugins.jetbrains.com/plugin/22379-tabby).
+
+
+## Feedback and support
+If you have improvement suggestions or need specific support, please join [Tabby Slack community](https://join.slack.com/t/tabbycommunity/shared_invite/zt-1xeiddizp-bciR2RtFTaJ37RBxr8VxpA) or reach out on [Tabby’s GitHub repository](https://github.com/TabbyML/tabby).

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