README.md in trestle-search-0.2.0 vs README.md in trestle-search-0.2.1

@@ -15,32 +15,42 @@
 
 To enable search capabilities within an admin resource, define a `search` block:
 
 ```ruby
 Trestle.resource(:articles) do
-  search do |q|
-    Article.where("title ILIKE ?", "%#{q}%")
+  search do |query|
+    if query
+      Article.where("title ILIKE ?", "%#{query}%")
+    else
+      Article.all
+    end
   end
 end
 ```
 
-The search block accepts one or two parameters; the first is the string value of the search query. The second, optional parameter is the full `params` hash.
+The search block accepts one or two parameters; the first is the string value of the search query. The second, optional parameter is the full `params` hash. The block should return a chainable scope.
 
-The search block will be called instead of the default (or custom) `collection` block when the `q` query parameter is present (i.e. when a search query has been entered). It must return a chainable scope.
+The search block overrides the default (or custom) `collection` block. However the original collection block can be called to avoid redefining scopes. For example:
 
-The original collection block can be called to avoid redefining scopes. For example:
-
 ```ruby
 Trestle.resource(:articles) do
   collection do
     Article.order(created_at: :desc).includes(:author)
   end
 
   search do |q|
-    collection.where("title ILIKE ?", "%#{q}%")
+    q ? collection.where("title ILIKE ?", "%#{q}%") : collection
   end
 end
 ```
+
+
+## Integration Examples
+
+1. [ActiveRecord (ILIKE)](https://github.com/TrestleAdmin/trestle-search/wiki/Integration-with-ActiveRecord-(ILIKE))
+2. [PgSearch](https://github.com/TrestleAdmin/trestle-search/wiki/Integration-with-PgSearch)
+3. [Chewy](https://github.com/TrestleAdmin/trestle-search/wiki/Integration-with-Chewy)
+4. [Sunspot](https://github.com/TrestleAdmin/trestle-search/wiki/Integration-with-Sunspot)
 
 
 ## License
 
 The gem is available as open source under the terms of the [LGPLv3 License](https://opensource.org/licenses/LGPL-3.0).