Add screenshot and make small edits (#247)

Author: devalog

fern/products/ask-fern/pages/getting-started/what-is-ask-fern.mdx

@@ -58,4 +58,4 @@ Fern AI Search indexes your documentation and provides an interface for your use
 
 ## Pricing
 
-AI Search is available on the [Pro plan](https://buildwithfern.com/pricing#Docs) of Fern Docs. Billing is by usage.
+Ask Fern is available on the [Pro plan](https://buildwithfern.com/pricing#Docs) of Fern Docs. Billing is by usage.

fern/products/docs/pages/customization/filtering.png

@@ -18,6 +18,10 @@ It includes built-in filters that let users refine their searches by content typ
 
 If you are using the AI Search feature, the search box also functions as your site's chat window.
 
+<Frame>
+<img src="./filtering.png" />
+</Frame>
+
 <Note>
     **Note:** If an article includes the `nofollow` or `noindex` [frontmatter](/learn/docs/content/frontmatter#indexing-properties), it will not be indexed by Algolia DocSearch and won't appear in search results.
 </Note>
@@ -28,11 +32,7 @@ If you need to integrate Fern's documentation search into your own application o
 
 ### Making Search Requests
 
-Once you have your credentials, you can make requests to Algolia's API to search your documentation. The search endpoint follows this pattern:
-
-```
-https://[APPLICATION_ID]-dsn.algolia.net/1/indexes/[INDEX_NAME]/query
-```
+Once you have your credentials, you can make requests to Algolia's API to search your documentation.
 
 Contact the Fern team to get your specific application ID and index name. Credentials are provided on a per-customer basis to maintain security.
 
@@ -42,6 +42,4 @@ Contact the Fern team to get your specific application ID and index name. Creden
 
 ## Using an alternative search 
 
-You can override Fern's search with your own solution. 
-
-To learn more, see [Custom JavaScript](/learn/docs/building-and-customizing-your-docs/custom-css-global-js#custom-javascript).
+You can override Fern's search with your own solution. To learn more, see [Custom JavaScript](/learn/docs/building-and-customizing-your-docs/custom-css-global-js#custom-javascript).