Increased initial size of help dialog

src/pulsatingsciencehelp.ui

@@ -5,8 +5,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
-    <height>300</height>
+    <width>590</width>
+    <height>441</height>
    </rect>
   </property>
   <property name="windowTitle" >