Documentation for Nestri (#116)

I have made documentation for Nestri, so everybody easy can find
instructions to get started. It will also make it easier for people to
help contribute to the documentation.

The documentation is built with Nuxt3, [Docus
](https://github.com/nuxt-themes) which uses Nuxt Content.

![image](https://github.com/user-attachments/assets/b30258c3-2267-4710-b8f4-48145e7c98d0)

![image](https://github.com/user-attachments/assets/6ccad52e-b6e1-4c8d-9c0c-bc4fae0227f1)

apps/docs/content/2.nestri-node/3.getting-started.md

@@ -0,0 +1,30 @@
+# Getting Started
+
+::alert{type="danger"}
+Nestri is in a **very early-beta phase**, so errors and bugs may occur.
+::
+<!--
+Nestri Node is easy to install using the provided installation script. Follow the steps below to get started.
+
+ ## Installation
+
+1. Download the installation script using `wget`:
+
+```bash
+wget https://github.com/nestriness/nestri/nestri-node-install.sh
+
+```
+
+2. Make the script executable:
+```bash
+chmod +x nestri-node-install.sh
+
+
+```
+3. Run the script to start the installation process:
+```bash
+./nestri-node-install.sh
+```
+::-->
+
+