Added README files to each directory describing available workflows

Approval/README.md

@@ -0,0 +1,11 @@
+*   **one-step-approval.cswf.xml**  
+    Send to an approver who can request changes, accept and publish, or edit themselves.
+*   **approval-with-owner-draft.cswf.xml**  
+    Same as above but owner has opportunity to continue editing before sending to approver.
+*   **approval-with-publish-hold.cswf.xml**  
+    Same as above but approver can save asset into a 'Publish Hold' step so that changes
+    are present and visible in Cascade Server but not yet published.
+*   **collaborative-approval.xml**  
+    Very different from the above three workflows. Allows workflow owner to select three other
+    collaborators so that the asset can be passed around and commented upon before being sent
+    onto the final approver.

Automatic/README.md

@@ -0,0 +1,6 @@
+*   **publish-asset.cswf.xml**  
+    Automatically save and publish an asset. Can allow publishing for users who do not
+    directly have the 'Publish readable/writable Home Area assets' abilities.
+*   **publish-set.cswf.xml**  
+    Same as above but also publish a Publish Set that could update content that syndicates
+    the created/edited asset in the workflow.

Self/README.md

@@ -0,0 +1,4 @@
+*   **optional-publish.cswf.xml**  
+    Give the user the choice whether to publish or not. No approver intervention
+    required. Can allow users without the 'Publish readable/writable Home Area assets'
+    ability to publish.