[DOCS] Updates Discover docs (#110346)

* [DOCS] Updates search for relevance doc

* [DOCS] Updates Discover intro doc

Author: gchaps

docs/discover/images/add-field-to-pattern.png

@@ -1,6 +1,5 @@
 [[discover-search-for-relevance]]
 == Search for relevance
-Sometimes you might be unsure which documents best match your search.
 {es} assigns a relevancy, or score to each document, so you can
 can narrow your search to the documents with the most relevant results.
 The higher the score, the better it matches your query.
@@ -12,25 +11,23 @@ the <<gs-get-data-into-kibana, sample flights data set>>, or you can use your ow
 .  In *Discover*, open the index pattern dropdown, and select that data you want to work with.
 +
 For the sample flights data, set the index pattern to *kibana_sample_data_flights*.
-.  In the query bar, click  *KQL*, and then turn it off.
-+
-You're now using the <<lucene-query, Lucene query syntax>>.
+
 .  Run your search.  For the sample data, try:
 +
 ```ts
 Warsaw OR Venice OR Clear
 ```
 . If you don't see any results, expand the <<set-time-filter,time range>>, for example to *Last 7 days*.
 . From the list of *Available fields*, add `_score` and any other fields you want to the document table.
-. To sort the `_score` column in descending order, hover over its header, and then click twice on
-the arrow icon
-image:images/double-arrow.png[Double arrow icon to indicate sorting] so it changes to
+. To sort the `_score` column in descending order, hover over its header, and set
+the sort icon to
 image:images/downward-arrow.png[Downward pointing arrow to indicate descending sorting].
 +
 At this point, you're doing a multi-column sort: first by `Time`, and then by `_score`.
-. To turn off sorting for the `Time` field, hover over its header, and then click the down arrow.
+. To turn off sorting for the `Time` field, hover over its header, and set the sort icon to
+image:images/double-arrow.png[Arrow on both ends of the icon indicates sorting is off].
 +
 Your table now sorts documents from most to least relevant.
 +
 [role="screenshot"]
-image::images/discover-search-for-relevance.png["Example of a search for relevance"]
+image::images/discover-search-for-relevance.png["Documents are sorted from most relevant to least relevant."]