Doc: add keyboard shortcuts

Change-Id: I24cf1369e0ae68098413ec54f261f50c11ee4a3c
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

doc/src/howto/creator-keyboard-shortcuts.qdoc

@@ -186,8 +186,6 @@
         \row
             \o Toggle \gui{Search Results} pane
             \o Alt+2 (Cmd+2 on Mac OS X)
-
-            Ctrl+Shift+F
         \row
             \o Toggle \gui{Application Output} pane
             \o Alt+3 (Cmd+3 on Mac OS X)
@@ -422,6 +420,9 @@
         \row
             \o Replace next
             \o Ctrl+=
+        \row
+            \o Open advanced find
+            \o Ctrl+Shift+F
         \row
             \o Record a text-editing macro
             \o Alt+(
@@ -471,6 +472,12 @@
         \header
             \o Action
             \o Keyboard shortcut
+        \row
+            \o Open the QML file that defines the selected component
+            \o F2
+        \row
+            \o Move between code editor and visual editor
+            \o F4
         \row
             \o Toggle left sidebar
             \o Ctrl+Alt+0