Doc: fix typo

Change-Id: I741b7f5fcf58c594bf79d778e5defd4f388d466e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

doc/src/platforms/platform-notes-rtos.qdoc

@@ -84,7 +84,7 @@
         previous configuration, this choice does not not use
         \l{http://www.qnx.com/download/group.html?programid=26072}{QNX SDK for Apps and Media 1.0} which provides
         \c{fontconfig} and multimedia support along with other features. In this case, Qt will use the
-        internal font database instead of \c{fontconfig}, and \l{Multimedia}{multimeida} will be not functional.
+        internal font database instead of \c{fontconfig}, and \l{Multimedia}{multimedia} will be not functional.
     \endlist
 
     The compiler and other parts of the tool chain are provided in the SDP packages. You do not need