Update intro-to-claw.md (let's try this again) (#279)

* Update intro-to-claw.md

docs/user-documentation/intro-to-claw.md

@@ -1,23 +1,28 @@
 # Intro to Islandora CLAW
 
 Islandora CLAW is the project name for development of Islandora to work with Fedora 4. The current release of Islandora, known as 7.x-1.x, works as a bridge between Drupal 7.x and Fedora 3. Put simply, Islandora 7.x-1.x is middleware between Fedora 3 and Drupal 7.x, sometimes expressed as a hamburger:
-
+## Islandora 7.x-1.x (with Fedora 3)
 ![image](https://cloud.githubusercontent.com/assets/2371345/15615690/20e0a050-2416-11e6-813b-509fd2e197ed.png)
 
 Islandora CLAW (or Islandora 7.x-2.x) does more than simply replace that base layer with Fedora 4. It is a total re-architecting of the interaction between the various pieces. Rather than a hamburger, Islandora CLAW is a chimera:
+## Islandora CLAW/Islandora 7.x-2.x (with Fedora 4)
 ![image](https://cloud.githubusercontent.com/assets/2371345/15516273/76704a5c-21c8-11e6-9ca0-8c188313dbd1.png)
 
+Or, for a diagram that doesn't involve food or animals: 
+
+![image](https://cloud.githubusercontent.com/assets/2371345/15835402/2fa54f44-2c06-11e6-8c4f-13be4627f039.png)
+
 This new structure has several advantages:
 
 * Parcelling out the various services and dependencies allows for more horizontal scalability
 * Changing the relationship between Drupal and Fedora allows for a more flexible approach to front-end management (i.e, it need not be Drupal) while also taking much greater advantage of features available from Drupal (i.e, Fedora objects are treated more like nodes, for the purposes of using Drupal contrib modules. Many Islandora 7.x-1.x modules are redundant in Islandora CLAW because they reproduce existing Drupal contrib modules that can be used out of the box in Islandora CLAW).
 * Easier to keep up-to-date as not all pices must be versioned together.
-* Installations tools (Ansible, Docker, Vagrant) can automate uniting the pieces in a simple, clean installation process. Islandora has always beena turn-key repository solution, in the sense that it needs no customization once installed. With Islandora CLAW, that installtion process is much smoother, with automated solutions that can be used in production.
+* Installations tools (Ansible, Docker, Vagrant) can automate uniting the pieces in a simple, clean installation process. Islandora has always been a turn-key repository solution, in the sense that it needs no customization once installed. With Islandora CLAW, that installation process is much smoother, with automated solutions that can be used in production.
 
 ## Ecosystem
 
 #### [Alpaca](https://github.com/Islandora-CLAW/Alpaca)
-Event driven middleware based on Apache Camel that synchronizes a Fedora 4 with Drupal.
+Event driven middleware based on Apache Camel that synchronizes Fedora 4 with Drupal.
 
 #### [Chullo](https://github.com/Islandora-CLAW/chullo)
 A PHP client for Fedora 4 built using Guzzle and EasyRdf.
@@ -29,7 +34,7 @@ A container with references to all of the other components that make up Islandor
 Top level container for the various Islandora CLAW microservices.
 
 #### [Islandora](https://github.com/Islandora-CLAW/islandora)
-The Drupal modules associated with CLAW. Work in underway to have this as a project on [drupal.org](https://www.drupal.org/).
+The Drupal modules associated with CLAW. Work is underway to have this as a project on [drupal.org](https://www.drupal.org/).
 
 #### [PDX](https://github.com/Islandora-CLAW/pdx)
 Top level container for the various PCDM specific Islandora CLAW microservices.
@@ -59,4 +64,4 @@ Islandora CLAW is developed _by_ the Islandora community, _for_ the Islandora co
 
 ### Interoperability
 
-Islandora CLAW works with the [Portland Common Data Model](https://github.com/duraspace/pcdm/wiki), "a flexible, extensible domain model that is intended to underlie a wide array of repository and DAMS applications." What does this mean in practice? Objects stored in Islandora CLAW will have a a data model that can be recognized by Hydra and other custom Fedora 4 based repository heads, and vice versa. By working together with the Hydra and Fedora communities, we can leverage a broader community of developers, librarians, and other digital repository users to build better tools and share reosurces.
+Islandora CLAW works with the [Portland Common Data Model](https://github.com/duraspace/pcdm/wiki), "a flexible, extensible domain model that is intended to underlie a wide array of repository and DAMS applications." What does this mean in practice? Objects stored in Islandora CLAW will have a data model that can be recognized by Hydra and other custom Fedora 4 based repository heads, and vice versa. By working together with the Hydra and Fedora communities, we can leverage a broader community of developers, librarians, and other digital repository users to build better tools and share resources.