doc: add install and getting started documentation

docs/install.rst

@@ -0,0 +1,56 @@
+Install
+================
+
+Follow the steps below to install `py-libp2p` on your platform.
+
+**Linux / macOS / Windows**
+
+1. Create a Python virtual environment:
+
+   .. code:: sh
+
+       python -m venv venv
+
+2. Activate the virtual environment:
+
+   - **Linux / macOS**
+
+     .. code:: sh
+
+         source venv/bin/activate
+
+   - **Windows (cmd)**
+
+     .. code:: batch
+
+         venv\Scripts\activate.bat
+
+   - **Windows (PowerShell)**
+
+     .. code:: powershell
+
+         venv\Scripts\Activate.ps1
+
+3. Install `py-libp2p`:
+
+   .. code:: sh
+
+       python -m pip install libp2p
+
+Usage
+-----
+Configuration
+~~~~~~~~~~~~~~
+For all the information on how you can configure `py-libp2p`, TODO.
+
+Limits
+~~~~~~~~~~~~~~
+For help configuring your node to resist malicious network peers, TODO.
+
+Getting started
+~~~~~~~~~~~~~~~~
+If you are starting your journey with `py-libp2p`, read the :doc:`getting_started` guide.
+
+Tutorials and Examples
+~~~~~~~~~~~~~~~~~~~~~~~
+You can find multiple examples in the :doc:`examples` guide that will help you understand how to use `py-libp2p` for various scenarios.