re-arrange the user docs (#76)

* re-arrange the user docs

* Minor description edit

* update styles

* fix service links

Co-authored-by: kn0wmad <kn0wmad@protonmail.com>
Co-authored-by: Lucy Cifferello <12953208+elvece@users.noreply.github.com>

site/source/developer-docs/advanced/dev-tools/embassy-cli.rst

@@ -0,0 +1,52 @@
+.. _embassy-cli:
+
+==============================
+Embassy Command Line Interface
+==============================
+
+.. warning:: This is for advanced users only!! Anything you do while SSH'd into your Embassy is NOT SUPPORTED, unless under the guidance of a Start9 technician.
+
+When interacting with Embassy directly, you will invariably want to use ``embassy-cli``.  Embassy-CLI can control EmbassyOS in many of the same ways that the UI can, but with finer controls and deeper insights.
+
+In order to use Embassy-CLI, you will first need to authorize yourself with the following command...
+
+    .. code-block:: bash
+
+        embassy-cli auth login
+
+    and enter your Embassy Master Password at the prompt.
+
+
+You can enter ``embassy-cli help`` or ``embassy-cli <option> help`` to get an overview of capabilities:
+
+    .. code-block:: bash
+
+        Embassy CLI
+
+        USAGE:
+            embassy-cli [OPTIONS] <SUBCOMMAND>
+
+        FLAGS:
+                --help       Prints help information
+            -V, --version    Prints version information
+
+        OPTIONS:
+            -c, --config <config>
+            -h, --host <host>
+            -p, --proxy <proxy>
+
+        SUBCOMMANDS:
+            auth            Login/logout and manage sessions
+            backup          Manage backups
+            db              Interact with the Database
+            disk            Information on the external drive
+            echo            Echoes
+            git-info        Print the current git hash
+            help            Prints this message or the help of the given subcommand(s)
+            inspect         Details on services and their components
+            net             Network information
+            notification    Control UI notifications
+            package         Interact with packages
+            server          EmbassyOS operations and information
+            ssh             Manage SSH keys
+            wifi            Manage WiFi networks