Give a better example of search text method

Author: ziming

README.md

@@ -98,7 +98,7 @@ added them.
 
 // Get the first people id that matches the search text if 1 or more results are returned
 $laravelCrisp = new Ziming\LaravelCrisp();
-$laravelCrisp->websitePeople->getFirstPeopleIdBySearchText('[email protected]');
+$laravelCrisp->websitePeople->getFirstPeopleIdBySearchText('SomePhoneNumber');
 
 // Get you the last message of a conversation
 $laravelCrisp->websiteConversations->getOneLastMessage('session-id');