Doc: Describe the New Search option in Search Results pane

Task-number: QTCREATORBUG-17870
Change-Id: I51a7432d587ff426b20ea4212fd605c367e3d915
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

doc/src/editors/creator-editors.qdoc

@@ -1848,6 +1848,12 @@
     The search results are stored in the search history from which you can
     select earlier searches.
 
+    To clear the search results, select the \inlineimage clean_pane_small.png
+    (\uicontrol Clear) button.
+
+    To start a new search, select the \inlineimage qtcreator-new-search-icon.png
+    (\uicontrol {New Search}) button.
+
     \note You can use \uicontrol {Advanced Find} also to search for symbols. For
     more information, see \l{Finding Symbols}.
 
@@ -1999,6 +2005,9 @@
             \inlineimage clean_pane_small.png
             (\uicontrol Clear) button.
 
+        \li To start a new search, click the
+            \inlineimage qtcreator-new-search-icon.png
+            (\uicontrol {New Search}) button.
     \endlist
 
     \section1 Renaming Symbols

doc/src/howto/creator-ui.qdoc

@@ -466,7 +466,7 @@
     The figure below shows an example search result for all
     occurrences of the search string in the specified directory.
 
-    \image qtcreator-search-pane.png
+    \image qtcreator-searchresults.png
 
     For more information about the different search options, see
     \l {Finding and Replacing}.