Fix mandlebrot and imagescaling example qdoc markup.

Change-Id: I5c9802cab917203092d93fca73b166d2dfeb64bc
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
(cherry picked from commit 127f9e1098)
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>

examples/qtconcurrent/imagescaling/doc/src/qtconcurrent-imagescaling.qdoc

@@ -28,11 +28,10 @@
 /*!
     \example qtconcurrent/imagescaling
     \title Image Scaling Example
-    \bried Demonstrates how to asynchronously scale images.
+    \brief Demonstrates how to asynchronously scale images.
     \ingroup qtconcurrentexamples
+    \image imagescaling_example.png
 
     The QtConcurrent Map example shows how to use the asynchronous
     QtConcurrent API to load and scale a collection of images.
-
-    \image imagescaling_example.png
 */

examples/threads/doc/src/mandelbrot.qdoc

@@ -28,21 +28,21 @@
 /*!
     \example mandelbrot
     \title Mandelbrot Example
-    \brief Demonstrates multi-thread programming using Qt
     \ingroup qtconcurrent-mtexamples
 
-    \brief The Mandelbrot example shows how to use a worker thread to
+    \brief The Mandelbrot example demonstrates multi-thread programming
+    using Qt. It shows how to use a worker thread to
     perform heavy computations without blocking the main thread's
     event loop.
 
+    \image mandelbrot-example.png Screenshot of the Mandelbrot example
+
     The heavy computation here is the Mandelbrot set, probably the
     world's most famous fractal. These days, while sophisticated
     programs such as \l{XaoS} that provide real-time zooming in the
     Mandelbrot set, the standard Mandelbrot algorithm is just slow
     enough for our purposes.
 
-    \image mandelbrot-example.png Screenshot of the Mandelbrot example
-
     In real life, the approach described here is applicable to a
     large set of problems, including synchronous network I/O and
     database access, where the user interface must remain responsive