Add site preparation doc (#41)

* Add site preparation doc

* Make website folder explicit

* Rebase

docs/getting-started-preparation.md

@@ -0,0 +1,69 @@
+---
+id: site-preparation
+title: Site Preparation
+---
+
+After [installing Docusaurus](./getting-started-installation.md), you will want to install and run the example site included. This serves dual purposes.
+
+1. Verifying that Docusaurus was installed correctly.
+1. Providing you the skeleton to create your site.
+
+## Verifying Installation
+
+1. Generate the files for the example site by running `examples` using `yarn` or `npm`.
+
+    ```
+    npm run examples
+    ```
+
+    or
+
+    ```
+    yarn run examples
+    ```
+
+    > If any of the files created by `[yarn | npm] run examples` already exists, Docusaurus will not overwrite them.
+
+1. Run the server.
+
+    ```
+    npm run start
+    ```
+
+    or
+
+    ```
+    yarn run start
+    ```
+
+1. Load the example site at http://localhost:3000. You should see the example site loaded in your web browser.
+
+## Example Site Configuration
+
+Loading the example site will create the following files/folders:
+
+```
+website/core/Footer.js
+website/pages/...
+website/static/img/...
+website/siteConfig.js
+website/blog-examples-from-docusaurus/...
+docs-examples-from-docusaurus/...
+```
+
+> The `docs-examples-from-docusaurus` folder will be at the same directory level as `website`, not in it.
+
+The provided example files contain configurations that can be used as starting points for your site:
+
+- The `website/core/Footer.js` file is a React component that acts as the footer for the site generated by Docusaurus and should be customized by the user.
+- The `website/blog-examples-from-docusaurus` folder contains examples of blog posts written in markdown.
+- The `docs-examples-from-docusaurus` folder contains example documentation files written in markdown.
+- The `website/pages` folder contains example top-level pages for the site.
+- The `website/static` folder contains static assets used by the example site.
+- The `website/siteConfig.js` file is the main configuration file used by Docusaurus.
+
+You will need to keep the `website/siteConfig.js` and `website/core/Footer.js` files, but may edit them as you wish.
+
+You should keep the `website/pages` and `website/static` folders, but may change the content inside them as you wish. At the bare minimum you should have an `en/index.js` or `en/index.html` file inside `website/pages` and an image to use as your header icon inside `website/static`.
+
+The `website/blog-examples-from-docusaurus` and `docs-examples-from-docusaurus` folders contain example blog and document markdown files. If you wish to run Docusaurus with these files, you need to rename the folders to `website/blog` and `docs`, respectively.

website/sidebars.json

@@ -2,6 +2,7 @@
   "docs": {
     "Getting Started": [
       "installation",
+      "site-preparation",
       "getting-started"
     ],
     "Guides": [