🚙Drive by updates to search functions ref page

moved tutorial link into tip box at top
added cross-reference to search overview documentation
minor text flow improvements and punctuation fixes

Author: leemthompo

docs/reference/query-languages/esql/functions-operators/search-functions.md

@@ -6,21 +6,27 @@ mapped_pages:
 
 # {{esql}} Search functions [esql-search-functions]
 
+:::{tip}
+Get started with {{esql}} for search use cases with
+our [hands-on tutorial](docs-content://solutions/search/esql-search-tutorial.md).
+
+For a high-level overview of search functionalities in {{esql}}, and to learn about relevance scoring, refer to [{{esql}} for search](docs-content://solutions/search/esql-for-search.md#esql-for-search-scoring).
+:::
+
+{{esql}} provides a set of functions for performing searching on text fields. 
+
 Use these functions
 for [full-text search](docs-content://solutions/search/full-text.md)
 and [semantic search](docs-content://solutions/search/semantic-search/semantic-search-semantic-text.md).
 
-Get started with {{esql}} for search use cases with
-our [hands-on tutorial](docs-content://solutions/search/esql-search-tutorial.md).
-
 Full text functions can be used to
 match [multivalued fields](/reference/query-languages/esql/esql-multivalued-fields.md).
 A multivalued field that contains a value that matches a full text query is
 considered to match the query.
 
 Full text functions are significantly more performant for text search use cases
 on large data sets than using pattern matching or regular expressions with
-`LIKE` or `RLIKE`
+`LIKE` or `RLIKE`.
 
 See [full text search limitations](/reference/query-languages/esql/limitations.md#esql-limitations-full-text-search)
 for information on the limitations of full text search.