Doc: Remove reference to obsolete qtquicklayouts.index file

Add a link to the Layout QML type and fix the name of the import
to stop an autolink from being generated to the wrong target.

Change-Id: Id2ca5e418ea6d254813a20f00b6623ff21dda09a
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

doc/config/qtcreator-project.qdocconf

@@ -40,7 +40,6 @@ indexes +=    $QDOC_INDEX_DIR/qtwidgets/qtwidgets.index \
               $QDOC_INDEX_DIR/qtquickcontrols/qtquickcontrols.index \
               $QDOC_INDEX_DIR/qtquickcontrols2/qtquickcontrols2.index \
               $QDOC_INDEX_DIR/qtquickextras/qtquickextras.index \
-              $QDOC_INDEX_DIR/qtquicklayouts/qtquicklayouts.index \
               $QDOC_INDEX_DIR/qtlinguist/qtlinguist.index \
               $QDOC_INDEX_DIR/qtscript/qtscript.index \
               $QDOC_INDEX_DIR/qtscxml/qtscxml.index \

doc/src/qtquick/qtquick-uiforms-tutorial.qdoc

@@ -156,10 +156,10 @@
     \endcode
 
     Remove the \c width and \c height properties from the ApplicationWindow
-    type and use a Layout type in the MainForm type to set the minimum and
+    type and use a \l Layout type in the MainForm type to set the minimum and
     preferred size of the main view.
 
-    To use the Layouts, import QtQuick Layouts:
+    To use the Layout type, import Qt Quick Layouts:
 
     \quotefromfile uiforms/main.qml
     \skipto QtQuick.Layouts