More docs changes

docs/reference/msearch.asciidoc

@@ -1,4 +1,5 @@
 [[reference-msearch]]
+== client.msearch
 
 ////////
 ===========================================================================================================================
@@ -32,18 +33,20 @@
 </style>
 ++++
 
+
+[discrete]
 [[client.msearch]]
-== client.msearch
+== `client.msearch()`
 
 Run multiple searches. The format of the request is similar to the bulk API format and makes use of the newline delimited JSON (NDJSON) format. The structure is as follows: ``` header\n body\n header\n body\n ``` This structure is specifically optimized to reduce parsing if a specific search ends up redirected to another node. IMPORTANT: The final line of data must end with a newline character `\n`. Each newline character may be preceded by a carriage return `\r`. When sending requests to this endpoint the `Content-Type` header should be set to `application/x-ndjson`.
 
 {ref}/search-multi-search.html[{es} documentation]
 [discrete]
-== Function signature
+=== Function signature
 
 [source,ts]
 ----
-(MsearchRequest, options?): Promise<MsearchResponse>
+(request: MsearchRequest, options?: TransportRequestOptions) => Promise<MsearchResponse>
 ----
 
 [discrete]
@@ -71,6 +74,7 @@ interface MsearchRequest extends <<RequestBase>> {
 
 ----
 
+
 [discrete]
 === Response
 
@@ -80,3 +84,4 @@ type MsearchResponse<TDocument = unknown, TAggregations = Record<<<AggregateName
 
 ----
 
+