Update search.go: fix typo (#574)

Author: reshke

v3/search.go

@@ -623,7 +623,7 @@ func (l *Conn) Search(searchRequest *SearchRequest) (*SearchResult, error) {
 
 // SearchAsync performs a search request and returns all search results asynchronously.
 // This means you get all results until an error happens (or the search successfully finished),
-// e.g. for size / time limited requests all are recieved until the limit is reached.
+// e.g. for size / time limited requests all are received until the limit is reached.
 // To stop the search, call cancel function of the context.
 func (l *Conn) SearchAsync(
 	ctx context.Context, searchRequest *SearchRequest, bufferSize int) Response {