In OpenCVConfig.cmake.in, lowercased the commands in the example.

This is the preferred style nowadays, and more consistent with the
rest of the code.

cmake/templates/OpenCVConfig.cmake.in

@@ -6,12 +6,12 @@
 #  Usage from an external project:
 #    In your CMakeLists.txt, add these lines:
 #
-#    FIND_PACKAGE(OpenCV REQUIRED)
-#    TARGET_LINK_LIBRARIES(MY_TARGET_NAME ${OpenCV_LIBS})
+#    find_package(OpenCV REQUIRED)
+#    target_link_libraries(MY_TARGET_NAME ${OpenCV_LIBS})
 #
 #    Or you can search for specific OpenCV modules:
 #
-#    FIND_PACKAGE(OpenCV REQUIRED core highgui)
+#    find_package(OpenCV REQUIRED core highgui)
 #
 #    If the module is found then OPENCV_<MODULE>_FOUND is set to TRUE.
 #