change comment in setup app

app/SandboxSetup/projectiongui.ui

@@ -51,7 +51,7 @@
      <x>30</x>
      <y>370</y>
      <width>581</width>
-     <height>131</height>
+     <height>151</height>
     </rect>
    </property>
    <property name="readOnly">
@@ -62,7 +62,7 @@
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
 &lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Ubuntu'; font-size:11pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Project a blue screen on the previously selected output to help you setup your beamer and camera manually.&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Project a blue screen on the previously selected output to help you setup your beamer and camera manually. (you can put a cardboard on top of your sandbox to have a cleaner projection)&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Firstly, adjust the position and orientation of your beamer to project the blue frame in your sandbox. The red dot indicates the center of the blue screen.&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Then adjust the position and oritentation of your camera to capture the sandbox. Your camera must capture all of the blue screen and must be perpendicular to the sandbox's top.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
    </property>