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/build-package-example/01_setup.rst

@@ -0,0 +1,30 @@
+.. _packaging-setup:
+
+==========================
+Step 1 - Context and Setup
+==========================
+
+What we'll build
+----------------
+
+We'll create a web application that produces a hello world page. This web application will be the service we package for the Embassy. During this guide we will:
+
+1. Create a simple hello world web service
+2. Create a Dockerfile
+3. Create a Package Manifest
+4. Create a hosted repository which will contain all the service components
+5. Create the packaged service file
+
+You can find the `complete code <https://github.com/Start9Labs/hello-world-wrapper>`_ referenced in this guide on GitHub.
+
+Download required tools
+-----------------------
+
+If necessary, download any of the system requirements:
+
+- Docker 
+- EmbassySDK
+- A code editor
+- Terminal
+
+For more details and installation steps for these tools, visit the :ref:`environment setup <environment-setup>` page.