Docs/2.3 (#62)

* moved create before bootstrap to follow logical order

* Lots of edits to the quick start subsection of the user guide

* added a bunch of asciicasts

Author: GodloveD

_data/sidebars/user_docs.yml

@@ -19,14 +19,14 @@ entries:
       url: /docs-quick-start-installation
       output: web, pdf
 
-    - title: Bootstrap an Image
-      url: /bootstrap-image
-      output: web, pdf
-
     - title: Create an Image
       url: /create-image
       output: web, pdf
 
+    - title: Bootstrap an Image
+      url: /bootstrap-image
+      output: web, pdf
+
     - title: Bind Paths and Files
       url: /docs-mount
       output: web, pdf