[docs] Link to expressing or post (#6236)

This is a good learning material and linking here might help users self
service when faced with this.

Signed-off-by: Charlie Egan <charlie@styra.com>

docs/content/_index.md

@@ -60,7 +60,7 @@ There are three kinds of components in the system:
 * Networks connect servers and can be public or private. Public networks are connected to the Internet.
 * Ports attach servers to networks.
 
-All of the servers, networks, and ports are provisioned by a script. The script
+All the servers, networks, and ports are provisioned by a script. The script
 receives a JSON representation of the system as input:
 
 ```live:example:input
@@ -724,6 +724,11 @@ shell_accessible
 ```live:example/logical_or/partial_set:output
 ```
 
+{{< info >}}
+💡 there's a [blog post](https://www.styra.com/blog/how-to-express-or-in-rego/) that goes into much more detail
+on this topic showing different methods express OR in idiomatic Rego for different use cases.
+{{< /info >}}
+
 <!---TBD: explain conflicts --->
 ### Putting It Together
 

docs/website/content/integrations/expressing-or.md

@@ -0,0 +1,19 @@
+---
+title: Express OR in Rego
+subtitle: Idiomatic Rego Examples
+labels:
+  category: learning
+  layer: web
+inventors:
+- styra
+blogs:
+- http://styra.com/blog/how-to-express-or-in-rego
+docs_features:
+  learning-rego:
+    note: |
+      This [learning material](http://styra.com/blog/how-to-express-or-in-rego)
+      is a great way to learn how to migrate logic from other languages to Rego.
+---
+
+This [learning material](http://styra.com/blog/how-to-express-or-in-rego)
+is a great way to learn how to migrate logic from other languages to Rego.