QW sync en: expandable for searching tips added in include_searching_in_the_monitoring_environment, effective in user_interface and intro_gui to sync with the German version of both articles

Author: sucthan

src/includes/en/include_searching_in_the_monitoring_environment.asciidoc

@@ -8,7 +8,9 @@ image::gui_monitor_menu_search.png[alt="Monitor menu with search results.",width
 
 The search function in the [.guihint]#Monitor# menu is identical to that offered to you by the [.guihint]#Quicksearch# snap-in.
 
-Here are a few tips for searching:
+.Tips for searching
+[%collapsible]
+====
 
 * Upper and lower case is not relevant to the search -- with the exception of the search for labels, which are only found if they are entered exactly as they are called in the syntax `key:value`.
 * You can work freely with keywords, e.g. search for `pending service`.
@@ -18,3 +20,4 @@ A search for `s:boot` will show you all services that contain `boot` and a searc
 * You do not have to select an entry from the suggestion list. 
 After entering your search term, simply press the Enter key and you will receive the appropriate result on the main page in the form of a list of all hosts and/or services.
 * You can save the search query in a bookmark.
+====